ML163926661
Western Flycatcher (Pacific-slope x Cordilleran Flycatcher) Empidonax difficilis difficilis x hellmayri
Beitragende/r
Neil Paprocki Medien dieser/s Beitragenden Profil
Datum
Ort
George Hudson Biological Preserve - Smoot Hill (restricted access)
Whitman, Washington, United States
Medien von diesem Ort Illustrierte Checkliste- Alter und Geschlecht
- Adultes Männchen - X
- Tonaufnahmen
- Ruf
- Klangattrappe
- keine Klangattrappe benutzt
Kommentare
Same individual as ML163926591.
Beobachtungsdetails
Managed to get a good song recording of 1. Confirmed as an intergrade by Andrew Rush at UC Berkeley who has studied the WEFL intergrade zone extensively, his thoughts: "The songs that you recorded are typical of intergrades. They appear more like Pacific-slope to me, but the peak frequencies are not as high and, e.g., the second song type in the typical sequence is more rounded. But, the second song type retains the break in the middle, which you really don’t find in pure Cordilleran populations. For pure Cordilleran, you are safest in southern Colorado and Utah and New Mexico, Arizona, and Texas. Otherwise, the populations tend to be at least partially intergrades (all the way to the Black Hills)."
Technische Angaben
- Aufnahmegerät
- iPhone 8
- Mikrofon
- Zubehör
- Größe der Originaldatei
- 2.64 MB