THE BIEDS 



231 



differ widely, but in every case the young are helpless at 

 the time of hatching, and require the care of the parents. 



The perchers constitute the greater number of the birds 

 living in the meadows and woods, and are more or less 





FIG. 129. Anna hummer (Calypte anna) on nest. 



common, and consequently familiar everywhere. Among 

 the families into which the order is divided that of the fly- 

 catchers (Tyrannido})) the crows and jays (Corvidce), the 

 orioles and blackbirds (Icteridce), the finches and sparrows 

 (FringillidcB)) the swallows (Hirundinidce), the warblers 

 (MniotiltidcB), the thrushes, robins, and bluebirds ( Turdidce), 

 are the more familiar, though the others are equally inter- 

 esting. 



