ICTLS'IA. FALCO. 



275 



The immature bird, on which the description is basedj was 

 collected at Bartica. 



Breeding-season . Unknown in British Guiana. 



Sest. Composed of twias and built in a tall tree (^Schomhurgk). 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Supenaam River, 

 Bartica, Bonasika River, Abary River, Berbice River. Mazaruni 

 River (^McConnell collection^ ; Georgetown (QuelcK). 



Extralimital Range. South America generally to Paraguay and 

 Central America to Mexico. 



Habits. Schomburgk states (Reis. Guian. iii. p. 'do) that the 

 favourite haunts of this bird are the topmost branches of trees in 

 the woods near the coast. It soars with great ease high up into 

 the air almost out of sight, but soon returns to its favourite branch. 

 It builds its nest of twigs in tall trees that are quite impossible to 

 climb. The " Macusis '' call it Watatow. 



According to Mr. J. J. Quelch (Timehri (2) vi. pp. 120, 12~, 

 128) the food of this bird consists almost entirely of seeds, fruits, 

 and vouncr leaves. 



Genus FALCO Linn. 



Faico Linne, Syst. Xat. 10th ed. i. p. SS. 17oS. Tvpe F. suhhiiteo 

 Linn. 



The Falcons are also distino-uished bv bavin cr onlv one tooth in 

 the upper mandible, by their somewhat short and stout bodies. 



Falco fusco-cctrulescens. 

 Fig. 55. — To show the single tooth on the edge of the upper mandible. 



and by the distance between the primary and secondary quills 

 being more than half the length of the tail ; hinder portion of 

 tarsus reticulate. The tail is nearly square at the tip and short in 

 proportion to the length of the wing. 



T 2 



