K Dixon 1951 Parus atricristatus 2. Feb. 24 Chisos Basin, 5400 ft., Brewster Co., Texas. half a minute gave a louder call, then flew to a branch lower in the pinon than her mate was. Then both disappeared and I heard no more calls. The two birds seemed to be paired. This species appears to be a more robust bird than P. inornatus. One individual which I watched held his nest erect (apparently "habitually") reminding me of the individual of Otocercus eimeria which I saw in Oakland last summer. From noon until 2:00 the wind blew in strong gusts so I stayed at my camp table. I walked around on the slope W of where I saw the bird earlier but all the birds were inactive and wind came up again so I gave up (2:00 - 2:30) The trees here seem to be an even mixture of pinyon juniper (at least 2 spp.) and oak (at least 2). One of the junipers is the weeping juniper (J. flaccida) according to Sherry & Warnock Plants of Brewster County, Texas. The other juniper has checked back. Flat Opuntia, yucca, Agave, a Rhue and a probable Sarcobasis are the chief "undershrub" species. The grasses represent a good growth, grazing being excluded. From 3:15 until 4:00 I worked down the N facing slope above the govt workers residence. Then I worked the creek bed & slopes W of my camp until 5:05 - no tuftice- few birds calling.