Append!* 



OMITTED SPECIES 



As space is not available for descriptions of all 

 the least common birds the following remarks are 

 offered to guide the observer who may not find his 

 bird described in these pages. 



The chief omissions will be found to occur in 

 the order, Raptores (Birds of Prey) and the fol- 

 lowing families in the order of Passer es (.'Perch- 

 ing Birds) : 



Fringillidae (Sparrows, Finches) 



Vireonidae (Vireos) 



Mniotiltidae (Wood Warblers) 



Birds of Prey (see pages 49, 52) may usually be 

 recognized as such by their large size and a cer- 

 tain general resemblance in the respective groups. 

 But it should be remembered that the extremes in 

 size are great and that their habits differ widely. 

 The bill is always hooked; the plumage is usually 

 dull, though it may be beautifully mottled. Their 

 voices are generally harsh or weird. 



Sparrow (see page 73) are in general small, 

 brownish or grayish birds, often with striped 

 breasts, averaging larger than the two following 

 groups. The species of that description are mostly 

 birds of the ground. Other members of this fam- 

 ily are brightly colored tree-inhabiting birds. 



Vireos (see page 77) are all small arboreal 

 birds. Their colors are mostly a sober grayish, 

 olive and whitish. The Yellow-throated vireo well 

 deserves that distinctive name for being the only 

 attractively colored member. Their insect food is 



84 



