518 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Sight records 



In addition to the species in the foregoing hst, a number of others 

 were carefully observed, but, for one reason or another, not preserved 

 as specimens. These must remain purely sight records for the present, 

 but those that appear to have been adequately studied for purposes 

 of identification may be listed here. It may be recalled that two 

 perfectly unmistakable species have been referred to in our catalog 

 even though neither was obtained for the collection. The additional 

 birds tentatively recorded are as follows (in the absence of the 

 possibility of subspecific determination binomials only are used). 



Phimosus infuscatus (Lichtenstein) 

 Anas baha7nensis (Linnaeus) 

 Accipiter superciliosus (Linnaeus) 

 Falco albigularis (Daudin) 



Phaetusa simplex (Gmelin) 

 Dacnis cayana (Linnaeus) 

 Emberizoides herbicola (Vieillot) 



Birds of the region 



Inasmuch as field observing and collecting have now been pursued 

 for over 8 years in the study area, we feel that the list of the birds 

 inhabiting this portion of the tropical zone of northeastern Venezuela 

 is faily well worked out. It seems worthwhile to tabulate here the 

 monthly occm-rence and the known breeding activities of this avifauna 

 in order to make the data more readily available for comparative 

 studies of other tropical American areas. Probably few, if any, 

 other local regions in all of tropical America are as completely known, 

 save for an exceptional case such as Barro Colorado Island in the 

 Panama Canal Zone. The study area here reported, lies partly in 

 the States of Anzoategui and partly in Monagas; the elevation varies 

 from 350 to 1500 feet above sea level; the region comprises savanna, 

 deciduous seasonal woods, and lowland seasonal woods. An X signi- 

 fies that the bird has been recorded as present in the month in question ; 

 a dash (■ — ), not present; B means breeding. Sight records are 

 marked with an asterisk. 



Species 



Tinamus major zuliensis t 

 Crypturellus noctivagus erythropus 

 Crypturellus noctivagus spencei 

 Crypturellus soul 

 Colymbus dominicus speciosus 

 Podilymbus podiceps antarcticus 

 Phalacrocorax olivaceus olivaceus 

 Anhlnga anhlnga anhinga 

 Ardea cocci 

 Philherodias pileatus 

 Butorides striatus striatus 

 Florida caerulea caerulescens 

 Bubulcus ibis ibis 

 Casmerodius albus egretta 



tCaprito. 



