100 AMBERGRIS SWALLOW. 



black and white mixed : the feathers at the bend 

 of the wing are dingy white: the beak is brownish 

 black : the irides yellow brown : the legs and toes 

 covered with small plain brown feathers : the fe- 

 male differs in having the colours of the plumage 

 less brilliant. 



This species is extremely abundant throughout 

 the southern parts of Africa : it builds in crevices 

 of rocks, and lays four pure white eggs. 



AMBERGRIS SWALLOW. 

 (Hirundo ambrosiaca.) 



Hi. griseo-^fiisca, suUus dilutior, cauda maximeforficata. 

 Grey-brown Swallow, beneath paler, with the tail greatly forked. 

 Hirundo ambrosiaca. Gmel. Syst. Nat. 1. 1021. Lath. Ind. 



Orn. 2. 575. Q. 

 Hirundo riparia senegalensis. Briss. Orn. 2. 508. IS.pl. 45. 



Jfrfc 



L'Hirondelle ambrce. Buff. Hist. Nat. des Ois. 6. 612. 

 Ambergris Swallow. Lath. Gen. Syn. 4. 568. <). 



THE Ambergris Swallow receives its appella- 

 tion from its smelling very strongly of the sub- 

 stance of that name when recent : it inhabits 

 Senegal, and measures five inches and a half in 

 length: its beak is dusky black: the whole of the 

 plumage is of a grey brown colour, darkest on the 

 head and wing-quills, and palest on the under 

 parts of the body : tail much forked : female ? 

 beneath greyish white. 



