Subject: Census Count: Mosebar Heron Rookery, Yakima County, Washington on April 07, 2000
Date: Apr 10 08:54:22 2000
From: gmink at bentonrea.com - gmink at bentonrea.com


This report was e-mailed for Gaylord Mink by a robot at http://birdnotes.net
Excellent day; sunny, no wind. This was the site of a large, active
Great Blue Heron rookery in 1998 with more than 30 nests occupied by
heron pairs, most of which hatched 2-3 chicks each. Late in the heron
nesting season many double-crested cormorants began to forage in the
area and a few pairs took over some of the vacant heron nests. In
1999 herons successfully raised young in roughly one-half of the
nests despite fierce competition from cormorant pairs which
eventually occupied approximately one-half of all the nests. After
the 1999 heron nesting season ended virtually all nests were occupied
by cormorants. Today (4/7/00)heron were seen on only two of the 30+
nests; cormorant pairss occupied most of the others.

Birds seen (in alphabetic order):

American Coot 3
American Kestrel 1
American White Pelican 50
Black-billed Magpie 2
Canada Goose 25
Double-crested Cormorant 20
Great Blue Heron 10
Great Egret 1
Green-Winged Teal 10
Mallard 10
Red-tailed Hawk 2
Red-winged Blackbird 30
Song Sparrow 2
White-crowned Sparrow 10
Wood Duck 2

Total number of species seen: 15