McFADDEN'S SWAMP, 13 MILES SOUTH OF CORVALLIS, BENTON CO., ORE. April 25, 1948 09:00 to 13:00 Weather: Broken clouds with a rain shower Observer: D.B. Marshall Mallard - Just a few pairs scattered around. Pintail - Around 20 pairs Green-winged Teal - Only about 75, mostly in the far south pond. Shoveller - Around 30 pairs Wood Duck - Flushed one from the field outlet at the far NW corner of the north field. Ruddy Duck - Tom saw one male and two female as he passed through during the afternoon of this same day. Turkey Vulture - Several circled around all morning. Sharp-shinned Hawk - One over the creek. Ring-necked Pheasant - Heard some cocks crowing. Virginia Rail - Heard rail often on in the swamp and saw a pair together standing in some shallow water. Apparently they didn't know I was around. Coots. Kildeer Wilson's Snipe - Flushed several Greater Yellow-legs - Saw 25 in one flock in the north field. There was another flock of about 10 and perhaps others. Horned Owl - Saw this one come out of the ash between Muddy Cr. and the north field. Vaux's Swift - Watched one for some time in with a flock of swallows at the south end. After reading Blake's descriptions of swallow flights in the Auk I was cautious on this one to be positive that it couldn't be a bank swallow. The small size, peculiar tapering tail, wing movement like a bat and typical swift twittering notes gave it away. Rufous Hummingbird - Along Muddy Cr. Cairdner Woodpecker - At the swamp outlet in the ash. Violet-Green Swallow Tree Swallow Cliff Swallow Purple Martin - High over the north field. Crows - several went over. Oregon Chickadee Bushtit - A pair at the swamp outlet; Slender-billed Nuthatch - In the ash along Muddy Cr. Seattle Wren Tule Wren Robin Cassin's Vireo - Along Muddy Cr. Lutescent Warbler - Along Muddy Cr. Audubon Warbler " " " Black-throated Gray Warbler - In the ash between the north field and Muddy Cr. First was attracted by a warbler call note which prompted me to look up to see what it was - a beautiful black- throsted Gray, which sang several times and was soon joined by another. Yellow-throats Fileclated Warbler ? - Sure thought I heard one sing several times across the creek from the swamp outlet, but I failed to see him. Western Meadowlark - Singing in the field across Muddy Cr. Over