Well, first there's the whiney whistle that juveniles make when following
their parents (parents = "Kraa-ehk"; juvs = "whee-itt" more or less).

Juveniles are browner with white and gray splotches, a dark carpal bar is
visible when sitting. The crown is like the illustration of a winter adult
in NGS. Early in the season they're still a bit floppy and curl up at
loafing sites as if still at a nest rather than standing up like most of
the adults.

Cliff Drake wrote:
>
> How about a quick lesson on IDing Caspian Tern fledglings? What do I look for?
>
> I didn't see any terns today, but on the Magnolia tide flats at the mouth of the
> ship canal (viewed from A pier of the Shilshole Bay Marina) were 8 Great Blue
> Herons, an adult Bald Eagle, about 100 Canada Geese and a bunch of GW Gulls, all
> pretty close together, but there was a pretty big buffer zone around the eagle.
> The Herons were spaced 10 to 20 feet apart. As I was walking back to the car I
> saw a second eagle fly south, low over the marina, then turn east up the canal.
>
> Cliff Drake
> Ballard Seattle WA
>

--
Mike Patterson I don't swear for the hell of it.
Astoria, OR Language is a poor enough means of communication
mpatters at orednet.org and we've got to use all the words we've got....
Besides, there are damn few words anybody understands
Henry Drummond in "Inherit the Wind"

http://www.pacifier.com/~mpatters/bird/bird.html