Friday, November 30, 2012

The Nutting's Flycatcher is back!

Just after 8:00 this morning, after about 15 minutes of birding, I was walking down the road at Mosquito Flats in Bill Williams River NWR, planning out my post to the listserv about the continued absence of the Nutting's Flycatcher.  Of course it was at that moment that I heard that singular "WHEEP!"  I didn't think I had missed it so much, but that sound brought a huge smile to my face. It's back!

The flycatcher is behaving much the same way it did last year.  It called infrequently and was difficult to pin down, but once I located it foraging next to the road, it gave me some great looks.  Photos and sound recordings below from this morning.

"Miss me?"

Eating a mantid.  Check out the cinnamon secondaries!

Short, stout bill, bright yellow belly, cinnamon secondaries, and a greenish back are all good field marks.


The Bill Williams River NWR is about halfway between Parker and Lake Havasu City.  You can get to the flycatcher from Highway 95.  Take Planet Ranch Rd east from the highway (between the refuge headquarters and the Bill Williams bridge) and drive to mile marker 2, where cliffs rise on the east side of the road and riparian vegetation borders the left side.  Also check out the map.

Wednesday, November 28, 2012

Lesser Black-backed Gull - Lake Havasu

Two days ago (26 November 2012), John West photographed an odd gull on the beach at Rotary Park.  He sent the photos to David Vander Pluym, who immediately identified it as a juvenile Lesser Black-backed Gull!

Photos by John West

Above are two of John's photos of the Lesser Black-backed Gull.  I have fairly limited experience with Lesser Black-backed Gull, but I do see California and Herring Gulls regularly.  This bird is striking to me because the scapulars, tertials, and some of the wing coverts are solidly dark with narrow white edging.  Some important ID points are the long wings, narrow white edging on the tertials not reaching the greater coverts, fairly small black bill (though it seems to be on the large side for LBBG), fairly white ground color, masked face and streaked sides, and a dark bar on the greater coverts formed by dark bases growing broader distally.  In flight, it shows a black band on the tail (white bases to the outer rects) and plain dark underwing coverts.

There are two records of Lesser Black-backed Gull for Arizona.  Photos of those birds are here and here.

I've spent the past two days running around Havasu looking for this bird, without success.  However, I have seen a number of other goodies just being out and about.  In the Bill Williams, David and I saw the continuing two White-winged and four Surf Scoters.  At Rotary Park, we saw the two Pacific Loons which John found two days ago.

Pacific Loon on Thompson Bay, photographed 28 November
Also on Thompson Bay yesterday were two Arizona Review Species, a Black Scoter and a Red-throated Loon.

Red-throated Loon on Thompson Bay, photographed 27 November

Black Scoter on Thompson Bay, photographed 27 November
Today, I did something new, and bought a day pass to Lake Havasu State Park.  I think $10 is a bit steep to walk around on otherwise abundant lakeshore, but there is usually a nice gull flock there.  Not so today, but I checked the small cactus garden there, where I ran into a male Yellow-bellied Sapsucker.

Yellow-bellied Sapsucker at Lake Havasu SP, photographed 28 November
Best of all these birds, though, was a White-winged Scoter on the California side of the lake.  A county bird for me yesterday, and for David today.  I'm planning to give the Lesser Black-backed Gull another day of searching.  After all, the Glaucous Gull was notoriously difficult to find, and that bird was a cinch to pick out and ID even when it was over a mile away!

Sunday, November 18, 2012

Guest Blogger: Tips for Birding Havasu

Now that we're into mid-November, things are really begin to pick up here on Lake Havasu.  It's a prime time for birding the LCRV, and now is also the time for visitors to check out the area.  Below, David Vander Pluym steps in as a guest blogger to provide some tips for birding Lake Havasu and other large reservoirs!  Also, be sure to check out the links on the right side bar for useful websites for visitors.

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November and December are prime times to bird Lake Havasu with waterfowl migration under way. With all three species of scoters as well as a Red-throated Loon and the now regular large numbers of Greater Scaup and smaller number of Barrow’s Goldeneyes having arrived for the winter it’s a great time to be out and looking! One of the main questions we are asked is how do you find these birds? Given that the majorities of birders in Arizona live away from large reservoirs and are not used to identifying birds at such a distance this is a very understandable question. Below I will try to offer some tips and guidance for looking for birds on the lake.

First and foremost, be aware that compared to sewage treatment plants and places like Willcox, Lake Havasu is huge; you are often trying to identify birds that are a mile away or more. To give everyone some perspectives here are some distances starting with the Bill Williams arm. From the NWR HQ the nearest reed island is ~.45 miles away while the distant end of the buoy line is roughly .7 miles away. To put this in perspective Lake Cochise at its longest point is only .4 miles long! Scanning the main body of Lake Havasu the birds are often more distant. Scanning from the red and white lighthouse on Pittsburgh Pt. the ferry boat that crosses the lake, at its closest point is ~1.35 miles away! At the north end the lake is still about a mile across. Added to this even in winter heat haze can be a problem, making seeing a bird a mile away difficult, let alone identifying one. Generally when the sun is most intense it is best to skip the main body of the lake.
Now for some tips, number one of which is to bring a good scope. As I mentioned the distances are great and having a good scope certainly helps. If you don’t have a great scope, that’s ok, but you should be prepared to let some birds go as being simply too far away to identify as well as knowing you might miss something. You can also help with some of the distances by checking multiple locations, as some may be closer to an interesting bird than others.  For example, in the Bill Williams arm it is often helpful to walk the CAP peninsula to get closer to some of the distant flocks of diving ducks.

Second and equally important is patience. There can be a lot of birds around and it can take time to go through them all. The birds often move around a lot, feeding flocks will form, boats will flush birds, or they may just decide another spot is better. Waiting around will give you the chance to spot something that has finally moved out from its hidden cove. It is easy to spend a couple hours on a good day scanning from one spot. This also can help with changing your perspective on the size of birds. If you are used to seeing birds up close it takes a while to relearn field marks that are useful on distant birds. Because of the distance involved, it isn’t uncommon to think you have come across a rare grebe because it looks huge compared to the Common Loon behind it, only to realize it is a Pied-billed Grebe that is a quarter or even a half mile closer than the loon!

Be sure and study up ahead of time knowing what field marks are useful at a distance to help you spot the birds. Things like knowing that Red-throated Loons are about the same length as a Western/Clark’s Grebe, while a Pacific Loon is slightly bigger is the type of knowledge useful for trying to figure out what that distant loon is. Finally knowing what birds are expected and where can be helpful. There is now an invasive mussel in Lake Havasu and it is particularly common in the Bill Williams Arm. Because of this, species like Barrow’s Goldeneye and scoters are most likely there. Does this mean that you shouldn’t look for them elsewhere? Of course not, scoters can be found below Parker Dam or on the main body of Lake Havasu. However for time spent scanning, I have seen far more scoters in the Bill Williams Arm than all other areas of Lake Havasu combined. A final note on scaup, because of the mussel Greater Scaup have increased astronomically in certain areas. They are now the expected species in the Bill Williams Arm and around Pittsburgh Pt and it can often be difficult to find a Lesser Scaup at these locations when they are not actively migrating. Lesser is still the more common species around Parker Dam and in the shallow weedy waters of the north end of Lake Havasu. 


I hope these couple of tips will help out on your next visit to Lake Havasu!

-David Vander Pluym

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Now I'd be interested in hearing what kind of specific information and tips would be most helpful to visitors and readers.  Share your problems, experiences, questions, etc. in the comments!

Saturday, November 17, 2012

News Tidbits

This morning I came across a few interesting and relevant items in a newsletter from the Arizona Game and Fish Department.

For one, over the next week the Bureau of Reclamation will be running an experimental high-volume release from Glen Canyon Dam.  The main purpose of this is to mimic natural flood events, and redeposit sediment from the river bottom to the banks, creating beaches and sandbars.  This is possible this year because of heavy flood events during the monsoon season which deposited large amounts of sediments into the Colorado from its tributaries.  The higher flow will mainly affect the Grand Canyon; after passing through that area, the water will be caught and stored in Lake Mead.  Although it doesn't directly affect the lower Colorado River, it's worth reading up on this effort here.

Another exciting bit of news is that the AZGFD has created an interactive map of Arizona showing land ownership, game management units, access and easements.  Check it out at azaccessmap.com.

Sunday, October 14, 2012

Big Sit 2012: Cape Havasu

This weekend, everyone is talking about the Big Sit, a national birding event hosted by Birdwatcher's Digest, which falls every year on the second Sunday in October.  (This year, they added the preceding Saturday as a possible count day.)  This is one of the few events in birding that is purely for fun!  There's no scientific analysis of the data (unless you submit to eBird, of course), and no one is making comparisons of trends from year to year.  The event is supposedly non-competitive, but of course there is some competition among the circles to try to see the most species in the country or in the state.  The New Haven Bird Club, founders of the event, also pick a "Golden Bird" every year after the count, and every circle that recorded that species is entered for a chance to win $500 for a favorite conservation program.

I had been thinking that the Big Sit sounded like fun, and have also been increasingly interested in spending extended periods of time at Cape Havasu to see what may come by (for example, I spent five hours there last week).  With that motivation, I registered Cape Havasu as a circle for the Big Sit, and decided to spend my Saturday on the hill.

When people ask me what my favorite birding location in the LCRV is, I always say Cape Havasu.  It is situated just right at the north end of Lake Havasu, providing views of both the deep, open water on the main body of the lake, and the marshes on the northern end.  A narrow strip of mesquite, willow, and tamarisk runs along the shore, creating a corridor for landbird migrants.  Small stands of marsh vegetation along the water's edge harbor rails and herons.  Most of the surrounding land is desert, with rolling hills and deep washes of creosote and palo verde.  Lake Havasu City is nearby to the south, and Desert Hills to the north.  Also visible to the north is The Refuge, a golf course and country club.  The hill on Cape Havasu is tall enough to provide views of all these habitats, making it possible to see a great diversity of birds!

A Google Map showing Cape Havasu and the surrounding area.  Cape Havasu is the northernmost spit of land jutting into the lake, in the center of the screen.
I should note that this place has many names, and none of them are official.  In eBird it is called "north end viewpoint," which is how birders usually refer to the place.  David and I long called it "Lehman Hill" because it was Paul Lehman who told us about it, although I believe that Mark Stevenson discovered the spot.  Some call it "Pluym Point" for David.  It was Tom Johnson who, this spring, came up with the name Cape Havasu.  I think this is the most appropriate name for this amazing birding spot!

The diversity of birds seen at this spot is amazing, considering it has only been regularly checked for about the past two years.  I've seen nearly 200 species there.  The list of rarities includes Red-throated and Pacific Loons, Neotropic Cormorant, Tricolored Heron (the first for both Mohave and San Bernardino Counties), Red Phalarope, Arizona's second Little Gull, Parasitic and Long-tailed Jaegers, Purple Martin, Chestnut-collared Longspur, Prothonotary Warbler, Virginia's Warbler, Blackpoll Warbler, Clay-colored Sparrows, Bobolink, and (IMO the most unusual rarity for this location) Cassin's Sparrow.  Photos and details about many of those sightings are here.

All of these factors combine to make this my favorite birding spot in the LCRV, and an ideal location for a Big Sit!

On the morning of Saturday, Oct 13, I arrived at 4:15.  It was still completely dark out.  Immediately as I climbed the hill, I heard the "cree-cree" of Western Grebes, and accompanying begging calls.  As it turns out, apparently, Western Grebes do not sleep.  American Coots called occasionally, and before long I heard a brief call from a Pied-billed Grebe.  I listened intently for Great Horned Owls, but didn't hear a hoot.  I kept my digital recorder handy, and recorded several flight calls of migrating Passerines.  I'm not very good at identifying flight calls, but one Savannah Sparrow flew over, giving its distinctive "chintz" call, and I got a decent recording with a nice spectrogram.  Looking at spectrograms of other calls, I see a few of what I believe are Song Sparrows, and lots of unknowns.

Pre-dawn on the hill.  Photo by John West.
For a brief period before sunrise, local birder and photographer John West joined me in listening for the calls of the birds as they stirred.  Unfortunately he had to head down to the Bill Williams for the day, so he headed off before the sun rose.

John joins me on the hill.
Sunrise
 The birds woke with the sun, and I quickly started tallying new species: Ladder-backed Woodpecker, Great-tailed Grackles, Audubon's Warblers, Abert's Towhees.  Clark's Grebes calling "creeee" among the many Western Grebes.  Thousands of swallows started swarming out of the marshes, mostly Tree and Barn Swallows.  As they streamed past the hill, I picked out single Violet-green and Bank Swallows among them.  Scanning the lake added quickly to the species tally: Eared Grebes, Gadwall, Buffleheads (my first of the season), Ruddy Ducks, a distant Forster's Tern.  Gulls are early risers, and within a few minutes of sunrise I saw Ring-billed, California, a continuing Sabine's Gull, and my first Herring Gull of the season.

I turned my scope on the land as well as the water.  In the nearby community of Desert Hills I could see flocks of Eurasian Collared-Doves as well as Rock Pigeons (the latter a new addition to my Cape Havasu list!) and a few Mourning Doves.  A few American Kestrels were flying around the desert hills and washes, and a Prairie Falcon perched on a distant snag, stretching its wings.  Orange-crowned Warblers and Lincoln's Sparrows began calling from the trees and bushes next to the water.  Four hours went by in a flash, and I already had 55 species.

After several scans, I started thinking about the easier species that I was missing.  Northern Rough-winged Swallow immediately came to mind.  Loggerhead Shrike, Gambel's Quail, Greater Roadrunner, and Say's Phoebe were species that should be easy to see by scanning the desert.  I knew I would have to keep an eye out for migrating raptors: I expected to see Turkey Vulture, Northern Harrier, Osprey, Sharp-shinned Hawk (Cooper's was surprisingly easy, with a big female calling from the nearby trees early in the morning), and Red-tailed Hawk.  I hoped for Peregrine Falcon as well.  I was missing Gambel's White-crowned Sparrow, Wilson's Warbler, Blue-gray Gnatcatcher, and Crissal Thrasher, all species I hoped to get in the riparian vegetation around me.

At first I focused my attention on scanning the desert hills to come up with those missing species.  A single Greater Roadrunner stood sentinel atop a distant hilltop.  A very, very distant Say's Phoebe flew around, barely identifiable (one would visit the hill later in the day).  I spotted Turkey Vultures roosting in cottonwoods, the local Osprey began terrorizing goldfish in golf course ponds on The Refuge, and I saw a Northern Harrier cruising over the marsh.  Loud call notes brought my attention to the trees below me, and a flock of Gambel's White-crowned Sparrows flew in to the tamarisks--amazingly, they stayed only for about 15 minutes, and I didn't see any others all day.  Twice I thought I heard a calling Wilson's Warbler, but I couldn't hear it clearly enough to count.  Eventually, a Blue-gray Gnatcatcher came by, its whining calls standing out among the calls of the resident Black-tailed Gnatcatchers.

I listened carefully for new birds as I continuously scanned the skies and the water for new birds.  Green-winged Teal and Northern Pintail were visible only briefly.  A strange call coming from the water below me turned out to be a small group of Horned Grebes, early arrivals to the lake.  A distant small flock of teal flew over the marshes, either Cinnamon or Blue-winged, but I never got identifiable looks at either species.  A Lawrence's Goldfinch passed over the hill, calling its bell-like "dee-dee" as it went.  A single Pine Siskin was a welcome surprise, and an American Robin calling from the nearby willows was unexpected.

Late in the morning, the biggest surprise of the day showed up.  I was checking out warblers in a small flock below the hill, when a yellow one caught my eye--at first I thought it was an Orange-crowned Warbler, but something about it made me do a double-take.  Then it popped up and I saw white wing-bars, and realized it was a Baypoll Warbler!  A better look confirmed that it was a Blackpoll Warbler, a very rare bird in Arizona.  I managed to get it in my scope, and it gave me good looks for about 45 seconds before dropping out of sight.  The really mind-boggling thing about this sighting: it was in exactly the same place where the Blackpoll Warbler was found in the spring of 2011!!  I took my point and shoot camera to the trail below, leaving the circle to try to get photos of the bird.  It never showed up again.  I did see a Black-throated Gray Warbler, which I couldn't refind from the hill, so I wasn't able to count that species for the Big Sit.

As the morning became afternoon, the wind started to pick up.  The sun was shining, but it never got too warm, topping out around the upper 70s.  The wind was chilling, with gusts eventually reaching about 13 mph.  It wasn't so windy that I couldn't bird, but I did have to rescue my chair twice as it started blowing down the hill!

My setup.  I had to set my backpack in my chair when I wasn't using it, or it would blow away in the strong winds!
The wind did make listening a bit more difficult, and abundant boats and jet skis on the water had shooed away most of the water birds, so new species were suddenly much more difficult to come by.  Scanning the hills for quail, I finally spotted a Sharp-shinned Hawk.  I kept looking through the swallows flying by, amazed that I hadn't seen a Northern Rough-winged Swallow, but eventually a few came by.  After thirteen hours on the hill, I hit the milestone of 80 species when I clearly heard the Wilson's Warbler call.  I scanned the hills, golf course, towns and streets continuously, looking for Gambel's Quail, one of the most common and widespread species in this area.  As the sun set and the light began fading, I gave up on the quail quest.  John and Lorraine West joined me for a few minutes in watching the orange and red sunset, and the three of us enjoyed the sight of a few Lesser Nighthawks emerging from the dusky sky.

With the light gone, I settled back into my chair to listen once again for Great Horned Owls.  A chorus of "WOK!"s came from the marsh across the lake, Black-crowned Night-Herons emerging to feed.  A few times I heard calling Green Herons, which I had expected to see foraging along the shoreline during the day.  Finally, just before I left for the night, I heard an owl call, but not the one I expected!  It was the screech of a Barn Owl, species #84.

Looking for Great Horned Owls on the hills and snags.  Photo by John West.
Overall it was, I think, a very successful day!  Surprisingly tired from the day's adventure, I returned home, typed up an eBird checklist, and fell asleep.  The list has been submitted to Birdwatchers Digest, and right now Cape Havasu is leading in the rankings.  I hear that will change, though, as soon as a certain other Cape enters their list!  I should note that the night before the Big Sit, I asked some friends to predict how many species would be counted.  Amazingly, Jennifer Willcox guessed 84 species.

The Big Sit was a lot of fun, and a very different birding experience.  I hope to repeat the experience next year, hopefully with fewer scheduling conflicts so that others will be able to join in the fun!

Tuesday, October 2, 2012

The Red-breasted Nuthatch Irruption Reaches the LCRV

Lots of folks around the continent have realized by now that it is an irruption year for Red-breasted Nuthatches.  With failed seed crops across much of their range, they are showing up everywhere they aren't supposed to be.  Observers are noting that there seems to be one in every patch of trees in the desert!

The first in the LCRV this fall turned up south of Blythe in Riverside County, CA, September 20.  It was discovered by Jesse Swift.  I figured that they must be around in appropriate habitat, so I visited 'Ahakhav Tribal Preserve on September 22.  I briefly heard the "ink-ink" calls of a nuthatch, but no amount of searching, pishing, or owl calls could make it surface or call again, so I gave it up.  Now that I've really experienced how quiet these birds can be, I'm sure that it was a Red-breasted Nuthatch.  The next day, one was seen by Cyrus Moqtaderi and others at Cibola NWR, La Paz County.

Spending a week in the Bay Area, I saw Red-breasted Nuthatches in just about every tree I cared to check.  When I returned home two days ago, I was ready to try again!  During a stop at Rotary Park in Lake Havasu City, I saw at least one nuthatch--probably more like four.

Nuthatch at Rotary Park

Today was dedicated to nuthatches in La Paz County, a county where nuthatches aren't found in a typical year.  After an hour and a half of searching at the Bill Williams River NWR, one of the little guys decided to call, allowing me to get a short sound recording.  Later in the afternoon, one was at 'Ahakhav.  I saw it while it foraged, and it never called.  These irrupting birds have been so skulky and silent, I wonder how many are really out there.

Nuthatch at 'Ahakhav
The link at the top of this post shows a very interesting eBird chart for RBNU across the United States this year.  Sightings are spiking now at 16% of submitted checklists--that means 16% of checklists include Red-breasted Nuthatches!

Other good birds have been around in the past few days, too.  A Prothonotary Warbler has been at Cape Havasu for the past two days, photographed by John West today.  An exceptionally late Brown-crested Flycatcher conveniently called right as I was recording another bird today at the Bill.  Another cool sight at the Bill today was a flock of 500 Red-necked Phalaropes wheeling over the water in the Delta.

Saturday, September 1, 2012

White Ibis in Baker, CA

The summer doldrums are a thing of the past here in the desert, and I'm doing my best to forget them until next year.  Temperatures have been kindly staying below 110, monsoons have been passing through on a weekly basis, and fall migrants are steadily streaming through.  The past several weeks have been spent in and around Blythe, providing a nice change of scenery with some great birding locations that receive little coverage throughout the year.

David and I were wrapping up a week of work when we got word of a White Ibis discovered yesterday morning in Baker, CA--a neighboring desert locale a few hours from the LCRV.  There are only three previous records of this bird in California.  This status is somewhat surprising given their range: White Ibis are common along the coast of the Gulf of California.  Like Tricolored Heron, which shares a similar range, the ibis has turned up many more times in south-central and southeastern Arizona than in the deserts of western Arizona and eastern California.  The ibis is the much rarer bird out of range, however, and does not share the heron's tendency to turn up on the Pacific coast of California.

Naturally, we rushed to get home as soon as possible.  After dealing with paperwork issues that had to be resolved, we stared at Mapquest and weighed our options.  Two hours and 45 minutes from Lake Havasu City, sunset at 7:15.  Could we get there on time?  Should we wait until the next morning?  After waffling a few times, we threw scopes and snacks in the car and sped off towards Baker.  Two hours later (rare birds and setting suns wait for no man), we arrived in Baker in the middle of a torrential downpour.  Parked at the sewage ponds, we huddled in the car with lightning striking all around, rivers flowing down the roads, and bushes waving wildly in the wind.  Soon the storm abated, the rain let up, and the sun settled in just above the mountains to the west.  A flock of ibis lifted off the ponds and circled around, all White-faced.  We stood in the mud watching the birds, hoping the lone white bird would appear, when the rain started again.  The wind had shifted and seemed to be blowing the storm back towards us.  This is it, I said, the sun is about to set behind the mountains and we won't have enough time to wait it out again.

Off we went, wading through the red puddles and up to the ponds, walking as quickly as we could without risking flushing the birds.  Fortunately, the wind slowed and the rain stopped after a few minutes, leaving us free to scan the ponds.  We checked each pond carefully but could not spot the White Ibis.  As we were slogging through ankle-deep mud to check the next pond and the next, we heard voices behind us and spotted Jim Lomax and Bruce Barrett.  They circled back around the ponds while I walked out to the edge to scan the temporary mudflats covering the desert.  Suddenly David and I heard a piercing whistle, and looked up to see a large flock of ibis circling over the ponds, wheeling dark birds with one glowing white beacon among them.  The black storm clouds lingered to the northeast, in stark contrast to the one pure white bird against the lightning-laced clouds.

We joined Jim and Bruce to watch the flock fly up, gaining altitude as it circled.  They flew to the north as the rays of the sun grew dimmer behind the mountains, turned back and headed southwest of the ponds, apparently scanning the area for a better roost site.  Finding nothing, they set their wings and dropped back, circling repeatedly over the ponds before settling into the trees.  We were finally able to get scope views of the White Ibis (thanks to Jim!) as it struggled to gain a purchase in the dead branches with its gangly red legs.  Very much satisfied, the four of us slowly and carefully retraced our muddy steps, returning to the cars just as the sun's last rays faded, and the glow of the blue moon peeked out from behind the clouds.