PASSERINE BIRDS. 



429 



These birds feed on grain and seeds, more especially flax-seed ; they 

 likewise eat beech-nuts and hazel nuts, the latter of which they fix 

 firmly in some crevice, and then pierce them by repeated blows of 

 their sharp beak. 



V? 



FlG. 356. MJTHATCH. 



The Creepers (Cerfhia) have their beak compressed and slender, 

 more or less bent like a bow, and triangular ; their tail is slanting, 



FlG. 357. TRKE CRKKl'KR. 



