Verification of Unusual
Sight Record
For Utah
Rec. # 2015-20
| Common name: |
Blue-winged Warbler |
| Scientific name: | Vermivora cyanoptera |
| Date: | 06/02/2015 |
| Time: | 07:30 |
| Length of time observed: | 30 minutes (in hand) |
| Number: | 1 |
| Age: | Second Year |
| Sex: | Male |
| Location: | Utah Test and Training Range - North |
| County: | Box Elder |
| Latilong: | 41.148995, -112.958077 |
| Elevation: | 4200 |
| Distance to bird: | In hand |
| Optical equipment: | None |
| Weather: | Clear, 65 degrees Fahrenheit, 5 mph wind |
| Light Conditions: | Sunny |
| Description: Size of bird: | |
| (Description:) Basic Shape: | |
| (Description:) Overall Pattern: | |
| (Description:) Bill Type: | |
|
(Description:)
Field Marks and Identifying Characteristics: |
Small warbler. Bright yellow forehead, throat, breast, and belly. Olive nape and back. Black eye-line. Gray wings and tail. Two faint white wing-bars. White outer tail feathers. White undertail coverts. Appears to be a second year male. White wing-bars are faint but present. Yellow on forehead is blended with olive on crown farther forward than on adult males. Black eye-line is not as dark as on adult males. White on outer tail feathers is prominent. This bird was captured in a mist net on the UTTR. Measurements are as follows... Unflattened wing chord: 53 mm Tail length: 46 mm Tarsus Length: 19 mm Culmen length: 10.1 mm Bill width: 3.8 mm Bill height: 3.7 mm Bird Weight: 8.0 g (see photos) |
| Song or call & method of delivery: | |
| Behavior: | |
| Habitat: | Greasewood |
| Similar
species and
how were they eliminated: |
Prothonotary warbler. Our bird had a black eye-line and faint white wing-bars. White on outer tail feathers extends to the tip of the feather where prothonotary warbler will have black tips. Prothonotary warbler is larger in size and weighs substantially more. |
| Previous
experience with this & similar species: |
No experience with blue-winged warbler. Very experienced with warblers common to
Utah. |
| References consulted: | Randy Larsen-Brigham Young University |
| Description from: | From photo(s) taken at the time of the sighting |
| Observer: | Jace Taylor, Tyler Glazier, Jesse Morris, Kyle Muncey |
| Observer's address: | 894 W. 2225 S Syracuse, UT 84075 |
| Observer's e-mail address: | ** |
| Other observers who independently identified this bird: | |
| Date prepared: | 06/05/2015 |
| Additional material: | Photos |
| Additional_Comments: |