May 15, 1948, 12-mile Swamp, 0700-0845 -Brkn/ calm, cool. Took Natural History class out. Blue Heron - one flying over north end. Anthony's Green Heron - one over ash on west side. Saw it twice Bittern - heard one pumping about 0730. Mallards - well-paired up, but only a half dozen pairs seen. Blue-winged Teal - saw at least two full males at widely scattered spots this a.m. Two at about the same time, so they couldn't have been the same ones Shovellers - about 15 males and 5 females in the area. Few paired up, and many males jockeying for positions behind the female, when they are in flight. Vulture - just one Osprey - one flew low over the north end, with a Redwing Blackbird right behind it. Sparrow Hawk - on wire line. Pheasants calling Coots - about 10 seen altogether - one on wood raft, preening itself. Virginia Rail - flushed at least 3 different ones in area near the cabin. Gave 2 calls. Wilson Snipe - at least 5 in area. Fooled by thinking we heard a Screech owl for a while, but located 1, 2, or 3 birds sailing around high above us, and sometimes quite low over the swamp. Wirmowing took place up high only, however. Tones made with the wings, which are fluttered quite rapidly as they swoop with a slight drop in altitude. If wirmowing takes place while there is a deeper swoop, the tone becomes richer, more mellow, and lower. Dowitcher - one flew toward the north end as we came into the swamp. Black Tern - Jack Von Borstel first spotted it. A full plumaged dark male with white under tail flying slowly to the north. Had a peculiar type of wing-beat, as if it was about to check its forward motion. Phil Dumas saw this species on the spring bird count last year at this swamp, but this is the first time I have seen it, ever - a new bird for my life list! Mourning Doves - several pairs around Violet-green Swallows not too common Barn Swallows commonest Cliff Swallows, too, and they were dipping into the open water areas near the center. Horned Larks on fence posts and singing, on way out to the swamp. Raven - one seen Crows - a couple Seattle Wren Tule Wrens here and there, but comparatively quite this time of the day. Robins - a few Yellow Warblers calling here and there Aucubon Warbler - one immature bird seen. One yellow on rump, nowhere else. This year?? Black-throated Gray Warbler - one in ash tree Pacific Yellowthroats everywhere Pileolated Warblers quite common W. Meadowlarks singing. Redwings everywhere - found many nests, but only one with an egg in it. Late this year. Brewer/Blackbirds - a few Western Tanager - one full male in ash thicket by the swamp. Unusual habitat - migrant. Lazuli Bunting - in ash spirea fence row along east side. Oregon Towhees Juncos Song Sparrows 38 species 53 " total forth day (3 hours) 62 " " " " (+4 p.m. hrs.) May 17, 1948 - After Proline !! - 10 p.m. = 10:30 p.m. 100 @, 1/2 moon, calm, cool. Frogs calling Tule Wren singing continuously (off + on) - sometime not full song Long-tailed Jact - sang once Mallard See backside, too v