INDEX TO THE SPECIES. 



Strepsilas interpres 



Strigidaj 



Striginee 



Strix cunicularia 



flammea 



punctatissima 



hrachyoia 



ru/ipes 



Sturnella rubra. 



militaris 



Sturnus pyrrhocephalus 



■ militaris 



Suminse 



Sylvia Magellanica 



vclata 



Bloxami . 



macloviana 



nigricans . 



Patagonica 



dorsalis 



perspicillata 



Sylvicola aureola 

 Synallaxis humicola 

 major 



rufogularis 



maluroides 



maluroides, Anat. Descript 



flavogularis 



brunnea 



ffigithaloides 



nificapilla 



dorso-maculata 



tupinieri 



Tachuris omnicolor 



nigricans 



Le Petit Tachuris noiratre 

 Tanagra riificollis 



Guianensis 



vittata . 



canicapilla . 



■ Darwinii 



Bonariensis 



jacarma 



