Documentation of
Thick-billed Longspur
2019-024
Observer Information
Reporter:
David Tonnessen
Other Observers:
Species, Date, Time and Location Information
Species:
Thick-billed Longspur
First Date/Time:
10/12/2019 11:30:00 AM
Last Date/Time:
10/12/2019 12:30:00 PM
Duration (total time in view):
30 min - an hour
County:
Teller
Specific Location:
Manitou Lake and Trout Creek
Number:
1
Age:
Adult
Sex:
Unknown
Plumage:
Non-breeding
Habitat
Lake shore
Viewing Conditions
Optics:
Distance:
15 ft
Light:
Description of the Bird
Longspur - structurally like an elongated sparrow with very long primaries. Flushed several times showing obsvious extensive white in tail feathers, with black through center and tips of rectrices creating a T-shape. Gave two-note rattle diagnostic of McCown's several times, as well as longer rattle much like SMLO or LALO twice. Plain tan-colored overall with faint black crescent in breast, and rust patch occaisionally visible in "shoulder" or scapulars. Somewhat large-billed for a longspur. See photos for more.
Similar Species Discussion
All other longspurs were automatically eliminated based on large amount of white in tail and two-note rattle call. Large bill, rusty spot in scapulars, extensively pale underparts with dark crescent in breast also helps eliminate other longspurs.
Resources Used
N/A
Previous Experience
Much experience with McCown's, Chestnut-collared and Lapland Longspurs.
Notes
Memory
Additional Information
Date Documentation Submitted
10/17/2019 12:43:00 PM
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Location Map
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