March 9, 1948 Corvallis - 12-mile Swamp, 1310-1330, 30 ø Cool, N 6-12- Mallards - 12 Pintail - 3 Marsh Hawk - imm. M Sparrow Hawk - 3 Pheasant - 1 Mourning Dove - 1 Robin - 2 W. Bluebird - 4 A udubon Warbler - 4 W. Meadowlark - 6 Eng. Sparrow Brewer Backbird - 12 Redwing Blackbird - 1 AND RETURN: 1600-1620 Sparrow Hawk - 3 Mourning Dove - 1 Killdeer - 14 Flicker - 2 Robin - 1 Audubon Warbler - 1 Eng. Sparrow - 1 Brewer Blackbird - 45 Junco - 1 826 12-mile Swamp, Bruce Station, Mar. 9th, 1948, 1330-1600 30 ø N 8-15 - Blue Heron - just one flushed from west side. Canada Geese, Commons - about 200 in with flock of Hessers - cal. quite different. Lesser Canada Geese - about 1000 to 1200 in flocks at south end, on land and in water. Later flew to north end and made big flock of about 2500 there. Cackling Geese - a few (25 or so) in with the other geese. Mallards - must have been 3 or 400 around, mostly all in flooded brush and ash areas, for few were seen on open water - about even sex ratio. Baldpates - a few near the geese at the south end Pintails - 3 or 400 in area - about equal males and females. Green-winged Teal - some 500 at south end, and watched a F Marsh Hawk attaching one which it failed to catch. In field off N end were about 2000 more Teal Shovellers - mostly on open water, some 2-300 in area. About 3 M to 2 F. Ruddy Ducks - 5 near center bridge area. One nearly in full plumage. Hooded Merganser - one pair flew over us, the female first Vultures - the first of the year. While flushing the geese, I spotted two birds circling high to the west, but lost them. Later Dave spotted two circling low over the swamp area, working north, and I saw a third one sailing north, over the highway. All three of these birds weren't over 50 feet up. Sharp-shinned Hawk - saw one bird carrying a small mouse or shrew from field on east side Redtail Hawks - a couple seen in area Marsh Hawks - female or immature of last season over the swamp area. We saw them make passes at Redwing Blackbirds, M & F Pheasants, and Green-winged Teal, but with no success. Except with the Teal, it wasn't at all persistent in following prey. Sparrow Hawks - a few singles, and I also observed a pair of them feeding together, or rather hunting, from about 30 feet and about 50 feet apart. In one instance, both birds headed for the same spot at the same moment, both alighting on the prey, but soon one flew from the spot, leaving the other with the prey. Sex was not determined. Pheasants - in field at east side of swamp. Coots - 2 or 300 on open water, and in some brush-water areas. Killdeer - a few Wilson Snipe - just one flushed from marshy grass area. Greater Yellow-legs - 1st of the year - 3 of them flew low over us, calling. Flickers feeding in pasture on the ground, flying to and from fence row of ash trees. Violet-green Swallows - the first for me, tho Dave saw them Sunday. Just a coupe seen at first, but altogether we probably saw 25 or 30 of them Tree Swallow - I saw just one of them in with the W-G's. Seattle Wren - in brush area Tule Wrens - a few scolding, but none heard singing. Robins - a flock of 30 or 40 feeding in wet pasture. W. Bluebirds - hovering over stubble field on east side of swamp. Ruby-crowned Kinglets - several scolding from brush area. One singing beautifully. Pipits - a few flew over Audubon Warbler --must have been at least 200 in the ash and brush around the swamp. Meadowlarks - singing Brewer Blackbirds - a few. Purple Finches - Redwings - present at 1330. A few. 1st time they've been here before about 4 p.m. Oregon Towhees in brush areas. Savannah Sparrows - a few in Daucus field. Song Sparrows - at least a dozen in one little clump of brush. Some scolding, and others giving their spring song and display - a buzzing-like series of notes. 827