Marshall (1942) Zonotrichia capensis Volcan de Santa Ana Only Summit - heard throughout this prairie land even down in the flat parts of the crater dotted with low shrubs as shown in the MH panorama. Songs heard from all parts of this summit area where flat brushy areas. Very abundant here. Aimophila rufescens Volcan de Santa Ana Common on dry brush cover grown on S slope Cerro del Aguilas subsequent to removing original forest. A place occupied by lower zone "non-native" birds like Lapara, Thamnohulus, etc. therefore rather peculiar for Aimophila. Often hopping right in road - same spot every day - a pair here. Chilata Rather common in dry brush or hillside; forages on ground - likes bare ground of road or trail as at W slope Los Escaniles, or Cerro del Aguilas. Grassland only at San Ignacio. Same bushes as A. ruficanda at Chilata.