Verification of Unusual
Sight Record
For Utah
Rec. # 2018-72
| Common name: |
Eastern Bluebird |
| Scientific name: | Sialia Sialis |
| Date: | December 11, 2018 |
| Time: | 3:10 p.m. |
| Length of time observed: | 30-40 minutes |
| Number: | One |
| Age: | Adult |
| Sex: | Male |
| Location: | North of 7800 South along the Jordan River Parkway. |
| County: | Salt Lake |
| Latilong: | 40.613191,-111.921109 |
| Elevation: | Approximately 4,300 feet |
| Distance to bird: | 15 feet at the closest |
| Optical equipment: | Binoculars |
| Weather: | Gray skies and murky air quality due to the current inversion. Temperature around 30 degrees with no precipitation. |
| Light Conditions: | Challenging, but the bird came close enough to provide good views. |
| Description: Size of bird: | Smaller than the nearby American Robins |
| (Description:) Basic Shape: | Small stocky thrush |
| (Description:) Overall Pattern: | Blue, rust and white |
| (Description:) Bill Type: | Short and straight |
|
(Description:)
Field Marks and Identifying Characteristics: |
All blue above. Rust on the throat, sides of neck, breast and flanks. White
belly and undertail coverts. (see photos) |
| Song or call & method of delivery: | None heard |
| Behavior: | First seen perched on a wire near the Trax line. The bird relocated each time a train rolled through, but stayed within a 50 foot radius. Flew back and forth from the wires to a stand of trees between the tracks and the river. Perched at mid to upper level and occasionally plucked berries. Harassed at times by the nearby robins. |
| Habitat: | Riparian corridor along the Jordan River. |
| Similar
species and
how were they eliminated: |
Mountain Bluebird - Adult males are a softer overall blue and lack rufous coloring. Western Bluebird - Adult males have a blue throat and the rust color of the breast extends onto the upper back. Lazuli Bunting - Included as an elimination species because superficially it has a similar color pattern; however, it is noticeably smaller and has white wingbars among other differences. |
| Previous
experience with this & similar species: |
Not a great deal of field experience with Eastern Bluebirds although I have seen some in the eastern United States and the pair reported by Bryant Olsen on 1-1-17 along the Jordan River. Have seen many Mountain Bluebirds and Lazuli Buntings, but again limited field experience with Western Bluebirds. |
| References consulted: | Sibley Birds, Second Edition |
| Description from: |
Notes taken at the time of the sighting From photo(s) taken at the time of the sighting |
| Observer: | Pomera M. Fronce |
| Observer's address: | 1338 Old Maple Court |
| Observer's e-mail address: | ** |
| Other observers who independently identified this bird: | |
| Date prepared: | December 11, 2018 |
| Additional material: | |
| Additional comments: | Thanks to Matt Pendleton for the use of his fine photo since mine are just slightly better than deplorable. |