Thursday, December 13, 2012

2012 AZFO Meeting Summary

This fall, Arizona Field Ornithologists held their sixth annual meeting right here in Lake Havasu City.  The meeting was a great success, honoring Gale Monson with talks memorializing him and his work, discussion of the lower Colorado River Valley where he spent many years, and recognition of past and present recipients of AZFO's Gale Monson Research Grants.  Two days of field trips resulted in an array of unusual sightings.

Read all about the meeting and field trips here!

Wednesday, December 12, 2012

CBC Season

It's CBC season again!  A time of year when birders organize their efforts and agree to spend a day counting every bird in some small corner of the world, then celebrate together at a greasy local restaurant.  I missed the CBCs entirely last year, but this year I'm glad to be participating in at least two, the Yuma/Martinez Lake count and the South End of the Salton Sea.  I'm all about Imperial County, CA in my CBCs.  My December plans are up in the air, so who knows, maybe there will be more for me...

If you're not sure about the CBC schedule this year, have a look at Arizona counts or California counts.

Have you seen eBird's recommendations for entering your CBC data into eBird?  Read about it here!

Tuesday, December 4, 2012

Birding Planet Ranch Road

With the recent return of the Nutting's Flycatcher, the Bill Williams River National Wildlife Refuge and Planet Ranch Road in particular are once again getting attention from the birding world.

Map of the western portion of the refuge
On the map above, note the location of the visitor center, a good place to stop in for information.  It's also a good place to scan the Bill Williams Delta, also known as the Bill Williams Arm of Lake Havasu.  Just down the road east of the headquarters, marked in both directions by brown binoculars signs, is the entrance to Planet Ranch Road.

Sonoran desert and cottonwood/willow/mesquite riparian come together on the Bill Williams River.  This photo was taken just after the gate on Planet Ranch Rd.
 Some caveats.  Note that asking a GPS to point you to Planet Ranch Road is not likely to be useful--I've heard stories of people turning up in random locations in Parker, and also being pointed to the other end of Planet Ranch Road, a long drive through the desert to a section of the river that is privately owned and not accessible.  The road once ran all the way from Lake Havasu to Planet Ranch, but was washed out in floods several years ago.  Many maps still show it as it was, but it now ends in a gate at the red triangle shown on the map above.

A person walking along the edge of the forest anywhere along Planet Ranch Road is likely to encounter flagging, some of which marks trails entering the forest.  I can't stress enough the importance of staying off these trails.  Researchers create and use them for a variety of projects on the refuge.  The flagging comes in many colors depending on the project, year, and type of trail.  The trails crisscross and backtrack, some lead into ponds or river channels, and many are disused and being reclaimed by the forest.  Sometimes the flagging just ends.  Navigating these trails requires a knowledge of the flagging systems, a detailed and updated map, and a good handheld GPS unit and compass (not to mention a willingness to crouch, squeeze, climb, bellycrawl, wade, and be scratched up).  Recently, hikers entered the trail system at Mosquito Flats, and eventually became hopelessly lost.  They managed to find a spot with cell reception and called the Sheriff's department.  The Sheriff's department flagged their way along the trails, got lost, but eventually (miraculously) found the hikers on the other side of the river, dehydrated but otherwise okay.  Don't try to hike the trails.

There's a trail in there somewhere
Sorry for the doom and gloom, but I had to get that out of the way.  So, what is the best way to bird Planet Ranch Road?  The road winds through desert hills, cutting through interesting rock formations and running by washes and canyons.  All of this makes for great exploring, and the dense mesquite edge of the riparian interface can always be good birding.  In my opinion, the best place to bird along the road is Mosquito Flats.  Of course, this happens to be where the Nutting's Flycatcher is.  This is the only place where the riparian abuts the road, and the mesquite edge even crosses the road.  Birds to be found here regularly include species of cottonwood/willow riparian, mesquite bosques, and Sonoran desert.  Rarities that have been found here include Northern Parula, Black-and-white Warbler, Hutton's Vireo, Painted Bunting, Gray Vireo, Winter Wren, and Broad-billed Hummingbird.

Birding along the road, you may run across a binoculars sign underneath a double power pole, indicating a nature trail.  More than once I've overheard people saying "Hey, this isn't a trail!"  It is just a short trail that cuts through the thick mesquite and reaches into the forest, where it ends at one of those research trails I mentioned.  Still, even though it is short, it's worth checking out.

Check out this short jaunt into the forest
So, how about a hike?  I mentioned that the road ends in a gate, but the track continues for miles, ending around the Cougar Point area.  Park at the gate, make sure to pack some water, and explore.  In places the forest is very dense, but in other spots the river channels are very open, and an adventurous hiker can wander to a variety of areas.  Generally, the track is the most direct way to access the best habitat (there are usually tire tracks to follow from ATVs used by the refuge).  Be aware that this hike requires a chilly wade from about December through May, when the river is flowing.

The end of the road
Biologists wading in the river
 After a little more than a mile, the road crosses the river and forks.  The left fork runs through some very nice riparian habitat and passes through the old Kohen Ranch.  There isn't much left of the ranch except for overgrown Bermuda grass fields being invaded by mesquite.  The refuge is working on mesquite restoration in the area, and the resulting brushy mesquite bosque is wonderful habitat for sparrows in the winter.  If you can find the right fork running alongside the river, it passes into more open habitat with some spectacular scenery.  It ends after another mile or so around Cougar Point.

The river crossing just before Kohen Ranch
Bermuda grass fields at Kohen Ranch
Scenery between Kohen Ranch and Cougar Point
What season is best to bird the area?  I recommend late April or early May, when many of the breeders have returned but spring migrants are common, sometimes in large numbers.  Summer can be great birding, with a good variety of breeding species, some of which are amazingly abundant (especially Song Sparrow, Yellow Warbler, and Yellow-breasted Chat).  Black Rails and Elf Owls are some of the more sought-after breeders.  Black Rails will call at night and, sometimes, all day.  Listen for them at Mosquito Flats.  Elf Owls are common in the area--go out on a spring night and keep an ear out, and you will be sure to hear them.  Just remember that they are at the edge of their range here, so please don't disturb them or play tapes.  Remember that summers are hot in the desert, so it's best to be out early and back to the car by 10-11.  Fall is more subdued than spring, but can carry surprises of its own, such as the Northern Saw-Whet Owl found at Kohen Ranch this fall.  Winter is more hit-or-miss, with some stretches seemingly birdless until you happen upon a flock, which will typically include many Yellow-rumped Warblers and Ruby-crowned Kinglets.  No matter which time of year you visit, be sure to bring plenty of water.  Allow plenty of time for exploration and enjoy this beautiful and unique area!

Sunday, December 2, 2012

ANOTHER Lesser Black-backed Gull

November 30th, after a lovely day rediscovering the now-returned Nutting's Flycatcher, hiking in the Bill Williams, and finding my La Paz County Winter Wren, I thought I had used up all my birding karma for a little while.  Still, when I pulled into the refuge headquarters to scan the Bill Williams Delta, a not insignificant part of me was hoping that the Lesser Black-backed Gull would show up (click the link for more on LBBG identification).  So while I was sitting in the car starting a BirdLog checklist and I happened to put my binoculars on a brown gull that looked awfully white-rumped, I wasted no time grabbing camera and scope, jumping out of the car and setting up to scan.  I quickly got the scope on a brown gull, but was disappointed to see just another California Gull.  Used to disappointment after three solid days doing nothing but looking for that LBBG, I sighed and scanned on.  Then immediately got on another brown gull, this one with a white rump and white-based tail with a contrasting black band.  The Lesser Black-backed Gull!!

Long wings, masked appearance and white tail with black band.
To say that I was excited to see this bird would be something of an understatement.  Not that it wasn't fun birding around Havasu for three days and finding some other rarities and all, but I kind of ran myself ragged looking for that bird in Lake Havasu City.  I chased and missed the first state record, as well, a bird near Phoenix in 2006.  So after snapping some photos, I laughed and danced a jig and I'm sure some refuge visitors wondered what was going on with the lunatic with the scope and camera.

Fishing with Ring-billed Gulls
Soon, David had arrived from Havasu.  The bird had flown to nearby Havasu Springs, so we drove over and found it loafing on a beach.  David, being the real photographer between us, had taken control of his camera and got some much better shots.  It was he who first wondered whether it might be a different bird.  I had noticed that it seemed much whiter than in John's photos, but I didn't think much of it.  Now much closer to the bird, I checked it out in the scope, and sure enough, it was messier-looking than John's bird, without those nice clean edgings on the mantle feathers.  It was a single feather, though, that finally convinced us that it was a different bird.  In the flight shots above, note an obvious missing primary on the left wing.  One of David's photos shows that this feather isn't missing altogether, but is actually growing in, and it's more than four days along.

Narrower tertial edgings and messier scapulars and wing coverts than the Lake Havasu City bird

Better photo showing how white the plumage is.  Photo by David Vander Pluym
White plumage streaked with brown, masked face.  Photo by David Vander Pluym
The magical photo showing the primary growing in!  Photo by David Vander Pluym
Exciting times here on the river!