Showing posts with label Christmas Bird Count. Show all posts
Showing posts with label Christmas Bird Count. Show all posts

Wednesday, January 4, 2012

Celebrating Our Local CBCs

This year, again, Alan and I joined the national ritual of Christmas Bird Counts, once more participating in the back-to-back counts for Portal, Arizona, and the Peloncillo Mountains, New Mexico. The weather couldn't have been finer, with temperatures rising into the high 60s and low 70s.

The Portal count, coordinated by Jackie Lewis, was on Saturday. We hiked out our door and up to the high base of Portal Peak, a big bowl full of old-growth Arizona Madrone trees. Away from the canyon bottoms, much of our territory burned last May during the Horseshoe Two fire. Some regrowth has begun, but a lot of it still looks like the Desolation of Smaug.

Trudging through the Desolation, heading for that ribbon of green at the foot of Portal Peak (All photos except oriole by Narca)

Happily, many of the big madrones had weathered last year's drought, freeze and fire, although only a few still bore fruit this day.

An ancient Arizona Madrone, partly burned out, is sprouting new branches. Go, Life!

Junipers are way off in their cycle! We saw almost no berries (and a corresponding lack of berry-eaters like Sage Thrashers and Phainopeplas), and many junipers were peaking in their pollen production! Who ever heard of juniper pollen at the end of December?? Late February is more normal. Clouds of orange pollen were wafting on light breezes, creating a very sneezy CBC. Come on, hay fever in December?

This especially bright Say's Phoebe was flycatching within the Desolation.

The Vesper Sparrows surprised me by being in the burned area, higher on the mountain than they usually winter.

Several friends joined us––Skip from Maine, Linda from Idaho, Brad from Tucson––and here is Brad's photo of a highlight for our territory, an adult male Scott's Oriole, in all his finery. We've never before recorded one in our yard in December! I don't know whether Mr Scott is very late, or very early.

Scott's Oriole near Portal, AZ (Photo by Brad Tatham)

Sunday's Peloncillo count, coordinated by Nick Pederson, includes the north end of the Animas Valley, where the Diamond A Ranch (formerly Gray Ranch) allows entry for the CBC counters. Our territory was south of Dunagan's Crossing, from the hackberries through Middle Well, for those who know this valley. This part of the ranch had obviously endured a dry summer, and bird numbers were very low. (Other parts of the count circle fared better.)

The Peloncillo count has always shown boom-and-bust cycles, in synchrony with rain and drought. Once in a span of two years, we went from having the all-time national high for Brewer's Sparrows to zero! Such huge fluctuations emphasize why studies of wildlife in desert regions must be long-term to be truly relevant.

This cryptic Great Horned Owl was roosting in an old hackberry tree. He's hoping we don't see him!

Great Horned Owl in the Animas Valley, New Mexico

The Lark Buntings were also fun, as they picked through horse droppings in search of goodies. This male shows a trace of his classy black breeding dress around his bill.

Lark Bunting looking for a snack

Sunday, November 8, 2009

Whiskered Screech-Owl

A year ago on the Atascosa Highlands Christmas Bird Count south of Tucson, Alan and I encountered a little Whiskered Screech-Owl at its day roost. The owlet perched at the entrance to its roost cavity, comfortably soaking up the sunshine on that wintry day. A brief Morse code call and its yellowish bill confirmed its identity.

Yesterday that image of the basking owl, shimmering in my awareness for the past year, finally made it to paper. Here's the beguiling little raptor, rendered in watercolor and gouache.


Whiskered Screech-Owl by Narca

Whiskered Screech-Owls are common within their limited habitat in the southwestern Sky Islands. Their abundance in the Chiricahua Mountains helps to boost that area's density of nesting raptors to a dizzying level. Helen Snyder has investigated nesting raptors around Portal and the Chiricahuas for years, and found that when owls are included with the hawks, eagles and falcons, the density of nesting raptors in Cave Creek Canyon far exceeds that known for any other location in North America. The next closest is the Snake River Birds of Prey Area in southern Idaho, and it boasts less than 1/4 of the density of raptors found in Cave Creek Canyon. Helen and others are encouraging the US Forest Service to give Cave Creek Canyon a special designation that recognizes its unique importance to raptors and further protects the region from oddball threats that occasionally arise.

If you will be in southern Arizona in early January and would like to join Christmas Bird Counts for these areas, you can contact the compiler for the count that interests you. For Atascosa Highlands on Sunday January 3, email Rich Hoyer (calliope@theriver.com). For Portal on Saturday January 2, email Jackie Lewis (winjac12@vtc.net). Counts for Portal and the nearby Peloncillo Mountains are run back-to-back, and many people spend the weekend attending both counts. For the Peloncillo Mountains count on January 3, please contact Alan Craig (narca@vtc.net). Yes––the dates for Atascosa Highlands and Peloncillo Mountains do conflict!