Field notes, v666
Page 59
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