Wednesday, May 21, 2008

-- Fledging Time --

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Taking a cue from "Fangsheath," who recently posted some historical dates for Ivory-bill nest-incubation, over at Ivory-bill Researchers Forum, I thought it might be interesting, given the current time of year, to note the dates for actual IBWO fledglings to be seen. Between 1931 and 1939 Tanner reported (based largely on J.J. Kuhn's observations) a total of 2 young being seen (outside the nest) in the month of March, 1 in April, 4 in May, 2 in June, and 8 in July. Young Ivory-bills were known to hang out with their parents for many months after fledging. The previous numbers represent a small sample size of dubious meaning, but nonetheless might indicate that groups of Ivory-bills (as family units) may just now be emerging and foraging through the swamps just as searches have wound down (at least some automatic cameras remain up, though I'm not certain how many at this point).
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Elsewhere:

Pretty amazing nestcam video here of two Bald Eagle chicks taken from nest and tossed aside by a "rogue" juvenile eagle (semi-happy ending with injured chicks retrieved by humans and taken to a rehab center) --- causes one to wonder how often this occurs in the wild; not a behavior I've previously heard of humans witnessing, despite a lot of eagle nests kept under observation.

Science/nature-writer Chet Raymo has a new book coming out in the fall, check here and here.

And for your further reading entertainment a slew of 'Murphy's Laws' catalogued here (be sure to check out all the left-hand categories):

http://www.murphys-laws.com/murphy/murphy-technology.html

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