CHAPTER XX. 



THE CROWS. 



WE have now done with the Dentitostres and 

 come to the 

 Conirostre s , 

 or Conical 

 Bills, Cuvi- 

 e r 's next 

 tribe. The 

 d i ffer ence 

 between 

 these two 

 tribes is one 

 that presents 

 itself to every 

 boy who 

 keeps pets. 

 The "soft- 

 billed "birds, 



of which the 

 Robin or 

 Nightingale 

 may be taken 

 for an exam- 

 p 1 e, must 



Black and Grey-necked Crows. 



be fed on artificial foods representing, as nearly as 

 possible, the insects which are their natural diet. 

 They seem to be delicate and difficult to rear, but it 

 is only because you cannot give them exactly the 



