96 HIRUNDINID^. 



Leg of Cotile riparia, to show tarsal tuft. Leg of C. rupestris. 



Range. Europe, Africa, and Northern Asia. From Egypt, 

 through Palestine and Persia to Central Asia, the whole of India, 

 Burmese countries ; China. North America and South America to 

 Brazil. 



Key to the Species, 

 a. No white spots on the tail ; under tail-coverts 

 white. 

 a'. With a brown collar across the fore neck, 

 separating the white throat from the 

 white belly. 

 a". Under wing-coverts brown: sizesmaller; 

 wing 3-55-4-35 inches : a tiny tuft of 

 feathers at back of tarsus just above the , ^^-^^^.^-^^ ^ gg^ 



h". Under Wing-co verts white : size larger; ' -^ ' ^ 



wino- 5 inches: no tuft at base of 



tarsus dncta, p. 101. 



, . •. ; fpahtdicola, p. 102. 



5'. With no pectoral collar ., :'•..: :V. ^ ^S/p'^Si 



b. With white spots on aU but the centre and ^oryam.'p. 104. 

 outer tail-feathers ; under tail-coverts dark "- 

 brown, 

 c'. Throat and chest deep rufous, contrasting 



with sooty-brown abdomen. I /•«%«/«, p. 106. 



c". Larger: throat clear uniform rufous . Vw^ / ^_ jq?. 

 d". Smaller: throat dull rufous streaked ' -^ -^ 



with brown concolor, p. 108. 



d'. Throat and chest pale isabeUine or sandy 

 buff, fading into the shghtly deeper colour 

 of the abdomen. 

 e". Laro-er ; wing 4-9 inches : chin minutely 



spotted with brown rupestris, p. 109. 



f. Smaller; wing 4-5-4-55 inches ; chin and 



throat uniform ohsoleta, p. 111. 



1. Cotile riparia*. 



L'Hu-ondelle de rivage, Briss. Orn. ii. p. 506 (1760) ; Dauhent. PI. 

 Enl. vii. pi. 543. fig. 2. 



being apparently the presence or absence of a tiny tuft of feathers at the 

 posterior end of the tarsus, which is absent in the Orag-Martms {BMis), but 

 present in the Sand-Martins {Cotile), where it seems to indicate a slight affinity 

 to the feathered-legged Martins (ChcUdon). 



* For a complete record of American references to this species the reader 

 is referred to Coues, B. Color. Vail. p. 435. 



