Time to get your spectrogram interpretations on. We're testing new recording units for our flight call research and I recently placed one on my roof. Yes, migration may be winding down, but it's certainly not over: this weekend I recorded a Blackpoll Warbler flying over, so birds are still moving.
Of course, the unit records everything, not just migrating birds. This weekend's recordings included our resident coyotes, neighborhood dogs, drive-by cars, peepers, Bullfrogs, and toads, myself on the phone (note to self: take phone calls on the other side of the house), and the morning chorus.
Any guesses which territorial bird is singing in this spectrogram? This is an image, a visual clue. I'll put up the video later so you can hear the song. For a primer on interpreting a spectrogram check this web page.
Wood Anemones - At the end of the most recent Ice Age, the temperature began to rise and the ice began to recede...
18 hours ago