Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
August 9, 1947, 12-mile Swamp, Bruce Station, 730-930 a.m. 20 Brkn, RM-, SW 5-8
Blue Heron - just one seen
American Egrets - at least 5 were seen here and there in the swamp, at both ends.
Three were seen at one time; pics were taken of 2 together; One was observed
with his gullet pretty well filled with tadpoles of Bullfrogs from 2 to 4
inches long, which I watched it catch, and swallow. It was funny to watch
the bulge slip down until it reached the "top of the column" of predecessors.
While watching two, a third came over, and made some bluff dives at the other
two. The birds did "talk" to themelves, and to each other while I watched.
They are a be autifully graceful bird to watch as they fly leisurely and light.
Green Heron - saw 3 or 4 of them, 1 was an adult, and the other 5 appeared to be
immatures, being very light underneath, and streaked and not solidly colored
on the upper parts. No rich colors developed yet.
Bittern - one took off croaking, from near one feeding Egret.
Mallards - no full plumaged males were seen, all apparently being in eclipse
plumage, and feeding with 2
Blue-winged Teal (Cinnamon Teal) in a marshy area. The teal were also in the
late summer plumage, and aside from the wing patches, selection between the
two species could not be made.
Wood Ducks - several were seen here and there over the swamp.
Vulture - 2 flew over the N end. (Flocks of 4-15 circling s-ward over the county.)
Marsh Hawk - a richly colored r ed-grown female cruising back and forth, low over
the marsh area.
Sparrow Hawk - on wire line
Wilson Snipe - one flew over me, c alling occasionally
Least Sandpipers - groups of 4, 7, and 15 were seen
Western Sandpipers - 17 were seen in the north half of the swamp.
Pheasant in nearby field
Mourning Dove - a few on the fences and wire lines
Vaux Swifts - 3 or 4 in with the swallows, but I was surprised to see that these
were not a dark, dusky brownish, but were almost black, being lighter on the
head. Could they be the Black Swift? No! (too small)
Gairdner Woodpecker - working the ash on the west side of the swamp.
Say's Phoebe - near the place where we first saw one last winter, I had ample
opportunity to observe an immature of this species. The black tail was the
only thing really recognizable, the rest of the body being a buffto brown,
strongly streaked, and quite light yet, on the head. No call notes were
given while I watched, altho it did fly to the ground to get an insect.
Little Flycatcher - at least 6 different birds were seen.
Violet-green Swallows - quite a few adults and immatures over the swamp, in large
mixed flocks with all the other swallow-species, or perched on wire lines.
Everywhere in this part of the county, these swallows line the wire lines
by the hundreds.
Tree Swallows - several adults and quite a few immatures, altho compared to V-g's,
Cliff and Barn Swallows, they aren't numerous.
Bank Swallows - a few seen with the other swallows
Rough-winged Swallows - not too many of them seen/ in with the large flocks
Barn Swallows - 100's over the swamp, and adjacent fields. On June 25, the nest
being watched was reported knocked off the wall, to the ground, but today, I
found a new nest just 3" from the site of the original nest, and an adult
was flushed from the nest. The nest contained 2 eggs. Could be the same pair.
Cliff Swallows - 100's over the swamp, and fields, and elsewhere in the county they
are lined up on the wire lines with the Violet-greens.
Oregon Chickadees in the ash groves
Tule Wrens - scolding in the swamp area.
Robin - a few at the swamp (several sizeable flocks in Corvallis, today).
Cedar Waxwings - a few flying over
Audubon Warblers in the ash trees
Pacific Yellowthroats common in the fence rows, etc.
Green-backed Goldfinches
Willow Goldfinches - large flocks of adults and immatures, up to 40/ bunch
Purple Finch Chipping Sparrows - several small flocks Song Sparrow