Verification of Unusual
Sight Record
For Utah
Rec. # O_2007-02
Common name: |
Western Kingbird |
Scientific name: | Tyrannus verticalis |
Date: | January 31, 2007 |
Time: | 1:30 pm |
Length of time observed: | 10 sec |
Number: | 1 |
Age: | AHY |
Sex: | n/a |
Location: | Off SR-9 between Rockville and Virgin just west of Zion NP (north side of road). |
County: | Washington |
Latilong: | ~ 37 N, 113 W |
Elevation: | n/a |
Distance to bird: | 25-30 feet |
Optical equipment: | none, naked eye |
Weather: | Partly cloudy |
Light Conditions: | Excellent |
Description: Size of bird: | Small robin |
(Description:) Basic Shape: | Slender, long wings |
(Description:) Overall Pattern: | Mix of grey(gray), white and black with yellow belly |
(Description:) Bill Type: | Flycatcher/kingbird |
(Description:)
Field Marks and Identifying Characteristics: |
Grey crown and head with dark line through eye, mantle similarly grey
contrasting with dark wings and tail. Pale white-greyish throat and upper breast
with a lemon yellow belly. Dark bill slender. Underwing and leg colour and were not observed. In flight, this bird definitely showed a rounded tail that was quite black/dark, and as it banked trying to catch some sort of prey, I saw a hint of pale white along outer edges of tail. I must admit that at first the bird's face appeared quite dark suggesting Cassin's, but its pale throat and tail pattern rules out that species. Overall jizz immediately suggested a kingbird to me as it sat perched and then it briefly hawked for some sort of insect/prey in the sage/chaparral beside the road. Outside temp was about 43F so I was quite surprised to see this species in winter at this location. I was unclear of its significance by date until I consulted a state checklist later that day (note I was not on a birding trip, but on a business road trip traveling with my sales manager -- otherwise, I would have likely pulled over and photographed the bird, something I now very much regret in hindsight!). |
Song or call & method of delivery: | n/a |
Behavior: | Perched and then seen hawking for insect/prey in short flight. |
Habitat: | Open country/chaparral with no trees nearby and just bare low hills. |
Similar
species and
how were they eliminated: |
Species_Elimination: Cassin's Kingbird is a much darker bird with a pale tipped tail and slightly heavier look overall; Tropical has a much heavier/longer bill with a notched, not rounded tail; Couch's is similarly much heavier overall with a different bill. Eastern is essentially a black-and-white kingbird without a yellow belly. |
Previous
experience with this & similar species: |
I have seen all of North America's 'Tyrannus' except for Fork-tailed either in Canada, and/or on travels in western, southwestern, and southern US. Note that I am quite familiar with Tropicals as while rare, they do in fact show up with some regularity on Vancouver Island most years in late fall; Westerns are an uncommon but regular visitor/transient here in spring and summer. [If it helps: note as well that I have a banding master permit and have been birding for about 17 years. I am also chair of the Victoria Bird Records Committee]. |
References consulted: | National Geogrphic and then Sibley on return home later in week. |
Description from: | Notes made later |
Observer: | David Allinson |
Observer's address: | 572 Atkins Ave. Victoria, BC V9B 3A3 Canada |
Observer's e-mail address: | passerine@shaw.ca |
Other observers who independently identified this bird: | n/a |
Date prepared: | February 4, 2007 |
Additional material: | |
Additional comments: |