February 1, 1949 Benton Long Tom River,/Yake Co., 3 mi. north of Monroe. 1330-1630. 45°, calm, scattered cumulus clouds. Fields thawed out, little ice on river. by Tom McAllister. Pied-billed grebe - 3 Blue heron - 1 White-fronted goose - flock of 6 adults flushed from river Mallard - next in abundance to the pintail, 2:3 ratio. Greatest concentration of ducks I have seen in this portion of the valley. From the Long Tom R. bridge at the above-mentioned point, the river was a mass of ducks for the 3 miles up to Monroe. This concentration began just south of the bridge and consisted entirely of dabblers - mallards, pintails, and a few scattered green-winged teal. At this point where the river bends just south of the bridge, I counted 2,000 birds by comparative groups of 50. 10,000 birds would be a conservative estimate for the entire concentration, as I only covered a small portion of the river south of the bridge. The bridge marks a definite point of change in the river. South of the bridge, where the dabblers concentrated, the river suddenly becomes shallow and narrower with many mud banks and bars extending into the river. North of the bridge it was deep and wide with abrupt banks. This point was borne out interestingly enough by the duck distribution, for all the diving ducks, mergansers, and wood ducks were found north of the bridge. The pied-billed grebe, white-fronted goose, and a few of the dabblers were also found on the north side. Balpate - heard several calling. Pintail - most abundant dabbler Green-winged Teal - individuals and small groups scattered through the concentration. Wood duck - 3 M , 1 F Ring-necked duck - 6M and 2F Canvasback - 6M and 6 F. Flock of 20 flew over Lesser Scaup - 4 pair American Merganser - flock of 40 together on river. Very wary; the Canvasback and ring-necked were easily approached and flushed only after all the other ducks around them had gone. Males all in full breeding plumage - 25M and 15F. Red-tailed Hawk - 1 cruising along river Sharow Hawk - 1 Ring-necked pheasant - 2 pair in willow patch Coot - 6 birds on the river Wilson's Snipe - 1 at edge of river bank Gull ? - 3 immature Calif. or Ring-billed Kingfisher - 2, both with small spiny-rayed fish Flicker - 5 Stellers Jay - pair, cracking acors. Raven - flock of 7 flew over Crows - 14, feeding along mud banks of river. Oregon Chickadee Slender-billed Nuthatch Robin - 4 Pipit - flocks put up all along hiway from Corvallis to Monroe, 6 noted. Birds apparently feeding right along edge of road.