Spectograms

Hummingbird
Yesterday was the perfect listening day on the deck.
We found these bird song recordings and Don played them on the iPhone. Our goldfinch visitors answered, setting up a chorus of crows and squirrels.
Earlier, I noticed that the hummingbird sounded like a loud bumble Bee. Every Spring, I hear her calling for a mate and then she births a baby in the birdhouse on the upper deck, away from the squirrels and cats.

Please try the spectograms on the website below:
http://www.allaboutbirds.org/page.aspx?pid=1059

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