Verification of Unusual
Sight Record
For Utah
Rec. # 2021-10
Common name: |
Chestnut-collared Longspur |
Scientific name: | Calcarius ornatus |
Date: | 1-28-2021 |
Time: | 4:18pm |
Length of time observed: | 2 minutes |
Number: | 1 |
Age: | adult |
Sex: | male |
Location: | Ogden Bay WMA |
County: | Weber |
Latilong: | 41.228559, -112.18337 |
Elevation: | 4220 |
Distance to bird: | 80m |
Optical equipment: | Kowa 20-60X Spotting Scope, Nikon 10x42 Binoculars |
Weather: | Overcast, calm, balmy 48F. 2inches of snow on the ground |
Light Conditions: | Good, Flat light |
Description: Size of bird: | Small passerine |
(Description:) Basic Shape: | typical passerine |
(Description:) Overall Pattern: | Mostly blackish |
(Description:) Bill Type: | Granivore |
(Description:)
Field Marks and Identifying Characteristics: |
I had seen a large flock of Horned Larks land on the playa to the north of the
parking lot, so got my scope and walked toward them. As I approached I could
hear the rattle calls of Lapland Longspurs when they would fly, once they
settled and I got to a good vantage point I put the scope on the flock. Quickly
I found both Lapland and McCown's Longspurs in a variety of plumages including
males with black on the breast. As I was scoping I heard a different squeaky
rattle call from the south, so turned around and got on 2 birds in flight, I
watched one land in a flock of HOLA 80m to my north and then got the scope on
it. It was a basic plumage adult male Chestnut-collared Longspur. Dingy blackish
breast fading into gray belly, buffy throat , dark eyeline, whiteish supercilium,
dark crown. Small bill (color not noted). Direct comparison with LALO and MCLO
nearby. Flock flushed before I could get the camera on it, then would not
resettle for 1/2 hour, unable to relocate bu t heard again as I was walking back to car, near west parkinglot. The flight call of this Longspur was striking and distinctive, higher and squeakier than other Longspurs, the so called "Kettle" call. I had been hearing typical Lapland and McCown's Rattle calls for over an hour, this one immediately caught my ear as different, which ultimately got me on the bird to visually confirm. I should note, I never saw the upper side or spread tail of this bird. |
Song or call & method of delivery: | Heard distinctive flight calls several times, higher pitched and squeakier than other Longspur flight calls. |
Behavior: | Flew directly overhead calling, then landed in mixed flock of Horned Larks and Longspurs, after a couple minutes the whole flock flushed again and not able to relocate |
Habitat: | Mostly playa with pickleweed and saltgrass, some wetlands nearby |
Similar
species and
how were they eliminated: |
Lapland Longspur(basic male): Black bib limited to
upper breast, contrasting with white lower breast, belly and throat. Bold black
auriculars, golden supercilium, black streaking on flanks. Direct comparison McCown's[Thick-billed] Longspur(Basic male): Black on breast limited to bold triangle on upper breast, lower breast pale gray. White throat and supercilium, brown auriculars. Big headed and big billed. Direct Comparison Smith's Longspur: no experience but should have buffy to orange torso with no black, bold auriculars |
Previous
experience with this & similar species: |
Yes, I saw an adult male in alternate plumage in 2000 |
References consulted: | Sibley app (for calls), Macaulay Library for photos |
Description from: | Notes 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 |
Date prepared: | 1-28-2021 |
Additional material: | |
Additional comments: | eBird checklist: https://ebird.org/checklist/S80048039 |