May 13, 1947, 12-mile Swamp continued: Cassin Vireo - several heard in the ash groves Lutescent Warblers - a few heard Yellow Warblers - heard and seen Pacific Yellowthroats - heard W. Meadowlarks - heard and seen Brewer Blackbirds - not at the swamp, but along the fence rows toward the road. NW Redwings - plentiful - most paired up. Nests in various stages of construction and destruction, some just being built, and other already deserted by the young. The nests were found principally in Carex obnupta, with 2nd abundance in small, protected ash trees; 3rd in Eleocharis, and 3 or 4 in a clump of cat-tails along the west side. Height ranged from 6" above the water in Eleocharis to 6 feet in one small ash tree. Most between 2 and 3 feet, however. Perhaps a dozen nests were found empty already, and I managed to band two birds that were able to fly a little ways. Many nests had incomplete sets of eggs, having just 1, 2, or 3 eggs. One nest containing 2 young at least 5 days old, and 1 dud egg, had the young in pretty bad shape, for the top of their cranium had been punctured by some bird, and open wounds were the result. I banded just one of these, and neither appeared as if they'd leave the nest. In case they do, we may be able to trace out some data on mortality. Song Sparrows - common. May 14, 1947, Corvallis, OSC Campus: Cedar Waxwings abundant in the elms on the campus this a.m. Heard everywhere. Robin - a nest is on the inferior cornice ledge above the top of the window outside the north windows of the Ag 329 lecture room, and it just seems to be hanging there, about 1/3 off the ledge. Occupied??? Little Flycatchers - heard in the row of small D. Fir by the tennis courts. May 15, 1947, South Spur, MacDonald Forest, 11 a.m. to 5 p.m. Sctd clouds, warm. Vulture - circling over the valley below Blue Grouse - not a single hoot was heard all day ! Band-tailed Pigeons - a few flew into the fir near the study area. Rufous Hummingbird - one female seen flying to a nest high in an oak tree. Wood Pewee - saw and heard a couple of them Olive-sided Flycatcher - just one was seen. Tree Swallow - a couple is all Stellar Jays - common, giving two scolding notes, and also Redtail call. Chestnut-backed Chickadees - adults feeding young, of which I saw 6. Red-breasted Nuthatch - in oak fir area. Golden-crowned Kinglets - a small flock working thru a clump of small firs. Cassin Vireos - calling here and there. Warbling Vireo - a couple seen and heard. Lutescent Warbler - a few Black-throated Gray Warbler - saw 3 today, and thought I heard others. MacGillivray Warbler - just one seen. Pileolated Warbler - saw 2 in the oak-fir area. Evening Grosbeaks - a few flying around in the area. Western Tanagers - at least 3 males in the vicinity of the area. One perched on several trees in an area of one acre, calling and singing lightly. A beautiful specimen, indeed. Junco - a couple seen.