Verification of Unusual
Sight Record
For Utah
Rec. # 2024-06
Common name: |
Thick-billed Longspur |
Scientific name: | Rhynchophanes mccownii |
Date: | 1/16/2024 |
Time: | 2pm~ |
Length of time observed: | Off and on for about an hour total |
Number: | 5 |
Age: | Some adult males(2 or 3) |
Sex: | Mixed, some males, some female or immature |
Location: | Ogden Bay WMA |
County: | Weber |
Latilong: | 41.225080, -112.173406 |
Elevation: | 4200ft~ |
Distance to bird: | 50-80m |
Optical equipment: | Kowa 66mm Spotting Scope |
Weather: | Sunny, clear calm and cold,26F |
Light Conditions: | Harsh, sunny day with snow on the ground |
Description: Size of bird: | smallish passerine |
(Description:) Basic Shape: | plump |
(Description:) Overall Pattern: | dull brown and grayish |
(Description:) Bill Type: | stout grainivore |
(Description:)
Field Marks and Identifying Characteristics: |
I initially found 1 here on 1/7/24, but it was late, windy and cold so I
did not attempt photos (Note at that time TBLO was not a review
species). I returned on 1/16 to relocate, photograph and see what else
may be mixed in. I arrived at around 1:30pm, initially I found a couple
small flocks that only had Horned Larks, but eventually found a bigger
flock farther out and almost immediately located a Thick-billed Longspur
in the scope. While watching and studying it, I noted another. Notes
from sighting-first saw tail in flight, white with dark T(white-tailed
Longspur would have been a better name)noted big head and stout bill,
short tailed with chunky body, black breast shield and gray belly. Noted
2 together several times, at one point found a group separate from Larks
with 5 or 6 TBLO and 2 or 3 LALO (see photos) |
Song or call & method of delivery: | Heard Longspur rattle flight calls several times, but Lapland also present so unsure which species |
Behavior: | Feeding on weeds and pickleweed sticking up through 6inches of snow, then flocks would flush, fly around then re-land, over and over |
Habitat: | Pickleweed-saltgrass playa near wetlands along east shore of Great Salt Lake |
Similar
species and
how were they eliminated: |
Lapland Longspur- direct comparison, smaller head and bill, rich rufous tones with bold black streaking on
flanks and dark auriculars, black upper breast with white belly, only 1
white outer tail feather Chestnut-sided Longspur-smaller head and bill, with wing bars and a blackish belly. 3 white outer tail feathers Smith's Longspur-smaller head and bill, buffy belly with black streaking and auriculars Snow Bunting-whiter overall with white wing patches, black primaries. No other Longspur or passerine has the same distinctive white tail with a dark T |
Previous
experience with this & similar species: |
Yes, several |
References consulted: | Sibley app |
Description from: |
Notes taken at the time of the sighting From photo(s) taken at the time of the sighting |
Observer: | Bryant Olsen |
Observer's address: | 84102 |
Observer's e-mail address: | ** |
Other observers who independently identified this bird: | None that I know of as of writing of record |
Date prepared: | 1/20/24 |
Additional material: | Photos |
Additional comments: | eBird checklist: https://ebird.org/checklist/S159092563 |