166 BIRDS OF EUROPE AND NORTH AFRICA 



Clamator glandarius (L.)- Oreat Spotted Cuckoo. 



(^ 9 adult. Above grey brown with broad white tips to 

 feathers, ashy on head ; beneath white, tinged yellowish on 

 throat ; tail long, graduated, white tipped. Bill dark brown, 

 yellowish at base below. Legs and feet blue grey. Wing 

 195-218 (H.). Tarsus 32-34. Bill 20-23. Young: crown and 

 nape black, remainder upper parts dark brown, glossed green, 

 primaries chestnut. 



Breeds. — Spain, Portugal, N. Africa (Morocco to Egypt), and 

 farther south in Africa ; also Asia Minor and Palestine. Occurs 

 occasionally Greece and Italy ; rare visitor elsewhere in Europe, 

 four times in British Isles. Winters tropical and S. Africa. 

 Eggs placed in nests of " Corvidae." 



COCCYZUS. 



No crest ; nostrils narrow ; bill narrower than in " Cuculus " 

 or "Clamator." 



Coccyzus americanus americanus (L.). Yellow- 

 billed Cuckoo. 



^j 9 Above brown, reddish on primaries ; beneath white ; 

 bare skin round eye grey (in young yellow). Bill above dark 

 horn, with yellow cutting edge towards base, below yellow with 

 black tip. Legs and feet dark grey. Winged 138-156, ? 137-150. 

 Tarsus 22-27. Bill from skull 28-30 (W.). 



An American species which has occurred on several occasions 

 in Britain and W. Europe. 



Coccyzus erytlirophthalmus (Wilson). Black-billed 

 Cuckoo. 



$ 9 Above brown ; beneath white tinged buff; skin 

 round eye red (yellow in young). Bill above blue grey, 

 darker at tip, below black. Legs and feet bluish grey. 

 Wing $ 135-143, ? 137-150- Tarsus 23-25. Bill from skull 

 26-29 (W.). 



Another American species of very rare occurrence in Europe. 

 Has occurred Ireland, Italy, Azores. 



