Wednesday, May 03, 2006

While many other species in our area are already incubating eggs, or even feeding young, the Violet-green Swallows are apparently waiting, as usual, for warmer weather. Today was warmer than recent days, and the female was inside the nestbox at least three times. The timing and sequence of her progress so far this year is remarkably similar to last year. How do they know when the time is right to begin building?


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