Type 1 Evening Grosbeaks at Desert View
13 Mar 2018, 9:04 PM,
#1
Type 1 Evening Grosbeaks at Desert View
About a month ago, on 10 Feb 2018, I recorded a small flock of Evening Grosbeaks here at Desert View on the South Rim. The spectrograms did not look like the expected (?) Type 4, so I sent them to Aaron Haiman who wrote about the different types here: https://ebird.org/me/news/evening-grosbe...lap-occurs

He confirmed my suspicion that these were Type 1 birds, which are the Central/Northern/Canadian Rockies/Pacific Northwest population.

This recording stuff is pretty cool! Interesting to be able to have these insights into species and population movements. Also, recordings from AZ seem to be pretty scarce, and it's not totally clear what is the expected type (4 or 5) in a lot of areas.


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Type 1 Evening Grosbeaks at Desert View - by Canyonbirder - 13 Mar 2018, 9:04 PM

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