pairs 946 Pipilo fuscus 30. 4 mi. Wof Salazar, 9500 ft., Mexico, Mex. July 26, 1946 patches, and many scattered bushes of Baccharis, and occasional maguey hedgerows separating the turf pastures where the cows & sheep graze. Brown tow- ees are seen out in the middle of the pastures, and when alarmed they fly farther out into the pastures, or fly into the Baccharis. However, they are not near- ly as wary as the birds hunted yester- day. Sibley shot one & 3 more. Two of the birds are molting. One is a juvenile, the first juvenile I have collected thus far. The gular patch under tail coverts are dull, the sides are very dark, and the posterior underparts somewhat streaked. There are skull windows in this bird. The iris of the adult ?'s is reddish-brown, and about the same color as that of P.f.utilus. Further, the birds have a mandibular tooth, so that this character is apparently sub- ject to much individual variation in P. fuscus. Most of the birds seen today were paired. One group of three was seen, possibly a family group. The 3 adult ?'s are in full breeding condition with enlarged testes.