Sam Crowe on March 12th, 2020

The Institute for Bird Population Studies recently posted a series of recordings of the song of the “Thick-billed” Fox Sparrow.  Some of the recordings they describe as being different sound remarkable similar to me, I guess I lack the trained ear of the researcher. One note I found interesting is that the Thick-billed Fox Sparrow […]

Continue reading about Virtuoso of the Sierra: “Thick-billed” Fox Sparrow