There was a very strong movement of dragonflies this afternoon
at Ft Stevens. Wind was NNE at 14.5km according to the weather
service. The direction of movement was to the south approximately
perpenducular to the direction of the wind. I was at parking lot
C from 1400hr to 1510hr and did 1 minute counts at parking lot A
from 1520hr to 1540hr. Those individuals that I saw well
(including two good studies on perched individuals through a
spotting scope) appeared to be VARIEGATED MEADOWHAWKS (Sympetrum
corruptum). Average count per minute was 47.6 with a range of 7
to 84 per minute (median was also 47) in twelve counts.

There were also quite a few darners in the area. Those that
allowed close study appeared to be PADDLE-TAILED DARNERS (Aeshna
palmata). These showed directional preferences.


--
Mike Patterson The common view of science is that it is a sort of machine
Astoria, OR for increasing the race's store of dependable facts.
mpatters at oregonvos.net It is that only in part; in even larger part
it is a machine for upsetting undependable facts.

----- H.L.Mencken
http://www.pacifier.com/~mpatters/bird/bird.html