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觀察細節
I don't understand what I saw/heard. An Osprey was circling El Estero lake, but I kept hearing loud "begging calls from juv" (my initial assumption) coming to a tall eucalyptus tree that is actually in the corner of the adjacent cemetery. I could not see the calling bird way up in the tree, but I felt that a bird there was giving loud calls, and the flying bird was responding. Later, at home, looking at photos, the flying bird looks like a juv. So were there two juvs calling back and forth... I think I can hear that in the second taped cut. Yet, Cornell's on-line article on Osprey says nothing about begging calls from juvs?
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