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 wrote:

> There were two juvenile CASPIAN TERNS in the loafing tern flock
> on the river beach at the south jetty of the Columbia River.
> Average detection date for juveniles is Jul 14. These are right
> on time.
>
> I have no idea whether these are from E. Sand Island or Rice Island.
>
> --
> 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