April 22, 1947, Avery Park, 5 p.m. Clear and warm. Left at 515 p.m. Cooper Hawk - one flew slowly over the tree tops. May be nesting here again. Red-breasted Nuthatch - one busy digging a nest cavity at 40 feet on the SW side of a rotten snag, on a tall, slim Big-leaf Maple tree. Deciduous canopy overhead. Creeper - heard Cassin Vireo - heard Lutescent Warbler - heard and seen Audubon Warblers - working the maples and ash. Purple Finches - singing from tree tops. Pine Siskins - a few heard. Towhee - singing from perches at 3 to 10 feet. April 23, 1947, Corvallis: 215 p.m. Canada Geese - 2 strings, totaling from 250-300 birds flew over at 3500 feet. North. April 24, 1947, Corvallis to "Poison Oak" Lake, Linn Co, 0650-0710. Horned Larks quite a few seen on fences, posts, and in the fields, many singing. Puget Sound Sparrows - all the way out and back were many of them singing from wire lines, trees, and telephone posts, etc. April 24, 1947, "Poison Oak" Lake, Linn Co., 0710-0945 3000 Brkn, NE 4, 70°F. Canada Geese - 3 flights went over, heading north, all in long inverted "V". 275 ' in one flock, 150-160 in another and 225 in a third, which was above the clouds. Wood Ducks - watched a pair. female swimming and leading the M, and giving continuous notes; while M preened, F flew up into an Ash tree by the water's edge, and about 10 feet high. Stayed a while, dropped back to the water and proceeded on around the lake, with the M following, both just looking, not feeding. All the while he was pushing his head way forward and pulling it way back, as if doing some phase of a courting. They'd whistle to each other every so often. They worked 1/2 way around one side of the lake, and another pair swam out and headed directly for them from the other side. As the 2nd pair approached the 1st pair retreated slowly, and in five minutes had been retreated some 50 to 60 feet along the west side. They whistled abc at each other, and after a time, the 1st pair advanced again, and this time the 2nd pair did not chase them, but retreated, instead, finally flying to the east side where they came from, and the first pair advanced on another 75-100 feet. Later this first pair flew up and around and lit in two oaks, the M 25-30 feet up on the NE side of one that had a cavity in it. He hung on the out-side, looking in, and then the F flew over from the other tree, and displacing the M, she hung on the side of the oak, by the hole, and he lit on another limb, 15 feet away, bobbing his head ahead and back. After about 3 minutes, she dropped to a perch a few feet from the hole, and just sat there, and the male flew back into the oak she had first lit in. I scared her about then, and that was all I saw. Greater Yellowlegs - two were in flooded pasture area at edge of lake, Called when flushed Mourning Dove - one bird perched 70 feet up in top of old oak, cooing loudly. Later I flushed another bird in the poison-oak-pasture area, and found a nest located on top of a very old D. Fir stump, rotten, but dry. It was 24" across and the top was 2 1/2 feet above the ground. The stump was encircled by poison oak 6 feet high, except on the east side. The nest was in a shallow cavity on top of the stump. Nest of heavier twigs up to 1/4" dia., and lined with very fine woody stems. No grass. About 1 1/2" deep and 3 1/2" wide on the inside. 2 young were in the nest, 1 a little bit larger than the other, but the larger one was dead, and it appeared to have a broken neck. The other was about 2" long, and covered sparsely with a grizzly gray-brown hair or down. Eyes not yet open. Pheasant - crowing in the area Flicker - Violeg-green Swallows Tree Swallows around a dead-topped oak Cliff Swallows - saw 4 of them. Lutescent Warblers - 6 heard and seen. Pacific Yellowthroats common Junco Chipping Sparrows Song Sparrow Long-tailed Jay Oregon Chickadee- pair mating with wing-flutte Seattle Wren - singing and giving note. rig Robin Cassin Vireo Audubon Warblers in the firs. Meadowlarks singing Purple Finch Towhee