VII 



CORVIDAE 



555 



and Corvus caurinus require passing mention. Crows generally 

 inhabit wooded country, but also bare moorlands or sea-coasts ;. 

 the Nutcracker requires pine-forests commonly at considerable 

 elevations ; and Magpies haunt woods, yet not so invariably 

 as Jays. The whole Family hop, and most forms, except per- 

 haps Jays, walk or run also. All are active birds and fly well,, 

 the Chough, Jay, and Nutcracker in more undulating fashion : 



FIG. 130. Raven. Corvus corax. 



TT- 



while soaring is a common practice. Eavens have very deep 

 voices, and croak, " bark," or " grunt " ; Jackdaws utter a clear 

 " jake-jake " ; Choughs a ringing, metallic note or a hoarse " chough- 

 chough " ; Nutcrackers a " churr-churr " ; Magpies a continuous 

 " rattle " or " chatter." Jays vary their harsh, grating utter- 

 ances by mimicking other species, the American Blue Jays being 

 notorious adepts, and exhibiting meanwhile fantastic contortions of 

 the head, wings, and tail. Many species, such as Ravens, Magpies, 

 and Jackdaws, learn to imitate sounds when tamed. The Corvidae 



