Date: 3/22/21 1:32 pm
From: Alvaro Jaramillo <chucao...>
Subject: Re: [southbaybirds] Red Crossbills at Santa Teresa County Park, Mon 22-Mar
Brooke, and SBB

Hi there. I am attaching a spectrogram of your birds. They decline in frequency with a slight step, a bit of an upward inflection, but not a massive increase in pitch half way through. As such, they look better for Type 2 (Ponderosa Pine) Red Crossbills.

This site has a nice graphic of call types to compare with.

nice find!


Alvaro Jaramillo

<mailto:<alvaro...> <alvaro...>

From: <southbaybirds...> <southbaybirds...> On Behalf Of Brooke Miller via
Sent: Monday, March 22, 2021 12:44 PM
To: South-bay-birds <southbaybirds...>
Subject: [southbaybirds] Red Crossbills at Santa Teresa County Park, Mon 22-Mar

This morning there were no new birds, migrant or otherwise, at the Pueblo Day Use Area at Santa Teresa County Park, except or 8 RED CROSSBILLS that flew over me getting in my car at the upper-most parking lot at about 11:10 am. I managed to get this audio:

I believe these are Type 3.

I recorded this on my iPhone using Voice Record Pro. You can read about eBird’s “Smartphone recording tips” here:

Good birding,

Brooke Miller

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