W.B.Davis 1936 Lake Alkali Ranch, Lake Co., Oregon. May 23. 530 The spring is about 30 ft. in diameter and about 9 ft. deep. It is heavily rimmed with rushes in which a colony of Yellow-headed Blackbirds have established themselves). Also a pair of Yellow-throats are here. Redwing Blackbirds) have established themselves in the short marsh grass and are promptly driven from the rushes by the yellowheads whenever they invade that sanctuary. Hundreds of small fish are in the spring. We caught 10 of them last night and had them for breakfast this morning. They appear to be a kind of Cyprinidow . The largest one is about 10 or 12 inches long. I set out 20 mouse traps last night, 4 around the spring, and the rest in the @triple areas where there are semi- sandy knolls. Caught nothing at the spring, and only 2 & Peromycus maniculatus in the @triples. Pequegnat just returned from a short hunt - 2:00 P.M. - and had a Lepus californicus F, and said he saw an Ammodermophilus. Two pairs of Barn Swallows are established at this ranch, and a pair