INDEX 
Patagonian Spine-tail, 219 
Pecho-amarillo, 123 
Pecho-colorado, 128 
Pepoaza Tyrant, 138 
Petrochelidon pyrrhonota, 32 
Phacellodomus ruber, 228 
—— sibilatrix, 229 
Phleocryptes melanops, 205 
Phrygilus fruticeti, 50 
Phytotoma rutila, 193 
Pico de Plata, 157 
Picolaptes angustirostris, 235 
Pipit, Cachila, 20 
Pitangus bolivianus, 176 
Plant-cutter, 193 
Poospiza nigrorufa, 49 
Progne chalybea, 25 
— furcata, 24 
—— tapera, 27 
Pseudolcistes virescens, 123 
Purple Martin, 24 
Pyreocephalus rubineus, 181 
Quarhi-rahi, 182 
Red-backed Rock Martin, 32 
Red-bellied Thrush, 3 
Red-billed Ground Finch, 57 
Red-breasted Marsh-bird, 120 
Red-capped Bush-bird, 236 
Red Thorn-bird, 228 
Reed Tyrant, 167 
Rhinocrypta lanceolata, 238 
Rufous Cachalote, 231 
Rufous-headed Marsh-bird, 119 
Rush-loving Spine-tail, 205 
Scarlet-headed Marsh-bird, 118 
Scarlet Tyrant, 182 
Scissor-tail Tyrant, 190 
Screaming Cow-bird, 96-112 
—— Finch, 45 
Serpophaga nigricans, 170 
—— subcristata, 169 
243 
Short-winged Tyrant, 161 
Silverbill, 157 
Siskin, Black-headed, 59 
Sisopygis icterophrys, 153 
Sordid Spine-tail, 217 
Sparrow, Chingolo Song, 54 
—— Yellow House, 61 
“ Spectacular ” group, 154 
Spermophila cerulescens, 45 
melanocephala, 47 
—— palustris, 47 
Stephanophorus leucocephalus, 42 
Stigmatura flavo-cinerea, 168 
Strange-tailed Tyrant, 151 
Striped Spine-tail, 215 
Swallow, 24-42 
Swallow-like Tyrant, 149 
Sycalis luteola, 67 
—— pelzelni, 61 
Synallaxis albescens, 211 
—— hudsoni, 220 
—— maluroides, 222 
—— modesta, 216 
—— patagonica, 219 
—— phryganophila, 214 
—— sordida, 217 
—— spixi, 210 
—— striaticeps, 215 
—— sulphurifera, 218 
Tachycineta leucorrhoa, 34 
Tznioptera coronata, 141 
—— dominicana, 144 
—— irupero, 145 
—— murina, 147 
—— nengetd, 138 
—— rubetra, 148 
Tanagers, 42-44 
Thamnophilus ruficapillus, 236 
Thorn-bird, 223 
Tiru-riru, 223 
Tit-like Spine-tail, 209 
Tree Martin, 27 
Troglodytes furvus, 16 
