THE LIFE OF THE ABARY SAVANNAS. 365 



Rufous Tree-duck (Dendrocygna fulva). 



Gray-necked Tree-duck (Dendrocygna discolor). 



Guiana Cormorant {Phalacrocorax vigua). 



Snakebird (Plotiis anhinga). 



Black Vulture (Catharisla urubn). 



Yellow-headed Vulture (Ca/harles tirnbilinga). 



Caracara (Polyborus cheriway). 



South American Blue Hawk {Geranospizias cacridcscens). 



* South American Black Hawk {Urtibilinga urubitinga). 



* Rufous Kingfisher (Ceryle iorquala). 

 Parauque (Nyclidromus albicollis). 

 Goatsucker (sp?). 



Green Hummingbird (sp?). 



Little Rufous Cuckoo {Piaya rutila). 



Smooth-billed Ani (Crotophaga ani). 



* Cinnamon Spine-tail {Synallaxis cinnamomea). 



* Pied Ground Flycatcher (Fluvicola pica) . 



* White-headed Flycatcher {Anmdicola Icucocephala). 



* Cinereus Tody-flycatcher {Todirostrum cinereum). 

 . * Guiana Kiskadee Tyrant {Pitangus sulphuratiis). 



* Lesser Kiskadee Tyrant (Pilangus liclor) . 



* Large-billed Kiskadee Tyrant (Mcgarhynchus pilangua). 



* White-throated Kingbird {Tyraimus melancholicus). 

 Tree Swallow (Tachycinela bicolor). 



Variegated Swallow {Tachycineta albiventris) . 

 Barn Swallow {Hirundo erythrogastcr). 



* Gray-breasted Martin {Progne chalybea). 

 Red-breasted Swallow {Stelgidopteryx ruficoUis). 



* Guiana House Wren {Troglodytes musculns clams). 



* Black -capped Mocking-thrush {Donacobius atricapillus). 



* Pygmy Seedeater (Sporophila minuta). 



Little Yellow-headed Blackbird (Agelaiiis ictcroccplialiis). 

 Red -breasted Blackbird (Leislcs mililaris). 

 Meadow Lark {Sturnella magna mcridionalis) . 



* Yellow Oriole (Icterus xanth omits). 



Little Boat-tailed (Guiana) Grackle (Quiscalus lugiibris). 



The most interesting of all were the Hoatzins," whose 

 raucous squawks brought vividly to our minds the mangrove 

 swamps of Venezuela where we had studied them last year. 



