ML163926661
Western Flycatcher (Pacific-slope x Cordilleran Flycatcher) Empidonax difficilis difficilis x hellmayri
Collaboratore
Neil Paprocki Contenuti multimediali da questo collaboratore Profilo
Data
Località
George Hudson Biological Preserve - Smoot Hill (restricted access)
Whitman, Washington, United States
Contenuti multimediali da questa località Checklist illustrata- Età e sesso
- Maschio adulto - X
- Suoni
- Richiamo
- Richiamo
- Richiamo non usato
Note contenuto multimediale
Same individual as ML163926591.
Dettagli dell'osservazione
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)."
Informazioni tecniche
- Registratore
- iPhone 8
- Microfono
- Accessori
- Dimensione originale file
- 2.64 MB