«

»

Feb
21
2012

San Rafael IBA Survey a Great Success!

By Jennie MacFarland, AZ IBA Conservation Biologist

San Rafael Grasslands IBA Survey Crew!

San Rafael Grasslands IBA Survey Crew!

Saturday February 11th dawned cold and clear over the San Rafael Valley as a caravan of cars came over the crest and into the valley. The Arizona Important Bird Area crew of 19 surveyors arrived in the San Rafael Valley IBA just as the sky was beginning to lighten. Many of these intrepid volunteers had arisen as early as 3:30 am to be here at this fleeting time of day in this beautiful spot. Just at the entrance of the valley, the crew stopped to enjoy the magnificent view for a moment and snap a group photo. We scanned the valley for Short-eared Owls soaring low over the grass to no avail, though later one of the teams did observe two. Then the crew split into 5 teams and drove to their appointed start points in the valley. The objective of the day was to record all birds seen but especially all of the Chestnut-collared Longspurs seen.

crew looking for short-eared owlsWhile the San Rafael Grasslands was identified as a state IBA in October 2011, we needed to establish that a wintering population of at least 240 is using the habitat for the IBA to be recognized as a Global IBA. This survey was the 4th winter survey of this area in 2 years and I am happy to report that is was a huge success! Four out of the five teams reported sightings of Chestnut-collared Longspurs and overall the entire team reported a total of 833 of these wintering birds! This is tremendous, especially since this is the third survey in a row where we recorded more than the Global IBA threshold number. A large part of the success of these past three surveys was due to two classes that Homer Hansen graciously volunteered to teach the volunteer crew on grassland bird identification. This extra instruction gave the survey crew the confidence they needed to positively identify these notoriously tricky birds. Special thanks to Homer!!

Matt Griffiths scoping for birdsOverall it was a great day! All of the teams reported that they had a great time and observed lots of interesting birds. After a long morning of surveying, it was time for lunch. The crew met in Patagonia and dined on delicious pizza from the Velvet Elvis, yummy! All that remains is to apply for Global status with the world-wide committee for this IBA. While in Patagonia, we also had a chance to observe the very obliging Williamson’s Sapsucker that has been reported in the park in Patagonia for a time. Judging from all of the holes he has drilled into that tree, he has been there quite awhile!Crew chowing down at Velvet Elvis

I would like to personally thank all of amazing volunteer surveyors: Mark Sharron, Farrish Sharron, Jim Gessaman, Tom Skinner, Jim Chumbley, Tim Helentjaris, Matt Griffiths, Bill Grossi, Joan Czapalay, Becky Aparicio, Diane Holsinger, Sharon Kearns, Katelyn Blakemore, Mary Ellen Flynn, Gay Gilbert, John Reuland, Jim Watts and Heidi Lauchstedt. Special thanks to Mark Sharron for the amazing bird photographs seen here and taken during the survey!

Here is a truncated list of some of the 56 species observed by the crew:

Gadwall          8

Williamson's Sapsucker

Williamson's Sapsucker

Mallard            10

Northern Shoveler       16

Ring-necked Duck      1

Pied-billed Grebe        20

White-tailed Kite        4

Northern Harrier         50

Sharp-shinned Hawk  2

Red-tailed Hawk        14

American Kestrel        22

Merlin  1

Prairie Falcon  4

Greater Roadrunner    3

Short-eared Owl

Short-eared Owl

Short-eared Owl         2

Acorn Woodpecker     5

Gila Woodpecker        3

Ladder-backed Woodpecker  3

Northern Flicker          9

Gray Flycatcher          1

Black Phoebe  1

Say’s Phoebe   9

Northern Harrier male

Northern Harrier male

Vermilion Flycatcher  1

Loggerhead Shrike      14

Mexican Jay    18

Chihuahuan Raven      2

Common Raven          34

Horned Lark   303

Bridled Titmouse        2

Bushtit                        10

White-breasted Nuthatch        4

Marsh Wren    1

Ruby-crowned Kinglet           1

Western Bluebird        10

Curve-billed Thrasher   2

Northern Harrier female

Northern Harrier female

Green-tailed Towhee  1

Rufous-crowned Sparrow       1

Chipping Sparrow       252

Brewer’s Sparrow        24

Vesper Sparrow          187

Lark Sparrow  50

Lark Bunting   5

Savannah Sparrow      374

Grasshopper Sparrow  8

Lincoln’s Sparrow       5

White-crowned Sparrow         116

White-tailed Kite

White-tailed Kite

McCown’s Longspur   50

Chestnut-collared Longspur     833

Unidentified Calcarius sp. (Longspur)   54

Red-winged Blackbird           65

Eastern Meadowlark   63

Western Meadowlark  3

Unidentified Meadowlark      43

About the author

Jennie

Jennie is the Coordinating Biologist for the Arizona Important Bird Area program and an employee of the Tucson Audubon Society. She likes birding and other cool nerdy activities.