SPREADING OF BIRDS. 75 



the Picus tridactylus, in Kamtchatka. Woodpeckers 

 in general inhabit warm countries ; as, Surinam, 

 Mexico, Jamaica, &c. Germany has eight kinds. 

 The Wryneck is met with from Lapland to Bengal. 

 The Genus of Cuckoos is particularly abundant in 

 the Torrid Zone : in Germany there are two species, 

 which are natives, the Common and the Sad-Red 

 Cuckoos ; the former appears to be a native of most 

 European countries. 



23. Of the family of the Nut-hatches (Sitta), one 

 species only spreads through Sweden and Kamt- 

 chatka (Sitta Europaa). All the other species (more 

 than ten) inhabit warm countries. 



29. Of Bee-Eaters (Merops), the common one 

 (M. apiaster) spreads Northward to Sweden, and 

 Southward to Arabia. Besides which, the Yellow- 

 headed Bee-Eater (M. congener) swarms from the 

 southern parts of Europe to Germany. Others 

 (more than twenty) inhabit the warmer regions of 

 the Old World. 



30. Of the family of the Hoops (Upupa), the com- 

 mon species are found in Europe, as far as Lapland, 

 and also in Asia and Africa. The others (about 

 ten species) are inhabitants of the Torrid, and the 

 contiguous parts of the Temperate, Zones. 



31. Of the Creepers (Certhia), the common species 



D2 



