GROUSE, PARTRIDGES, QUAILS, ETC. 113 



5'. Tarsus divided into 

 plates. 



Fig. 175. 



6. Bill slightly hooked or notched at tip. 

 *. Small ; wing 1.90-2.20. 



8. Upper parts greenish or grayish ; 

 tail even. Vireonidae : 

 Fig. 177. Vireos, P .394. 



8'. Upper parts bluish ; tail gradu- 

 ^S^ ?ted S 7 lviidae : Kinglets, 

 4 <^Hp Gnatcatchers, etc. 



v . ._ (Genus Polioptila : Gnat- 



* lg ' 178 - capers), p. 463. 



7'. Large : length 6.50 to 9. 



8. Head crested . Ampelidas : 

 Waxwings and 

 Phainopeplas, p. 387. 

 8'. Head not crested. 



Troglodytidae : Wrens, 

 Thrashers, etc. 

 (Genus Oroscoptes : Sage 



Fig. 179. Thrashers, p. 433. 



6'. Bill not hooked at tip. 



7. Tail feathers stiff, pointed at tip. 

 Certhiidae : Creepers, p. 451. 



7'. Tail feathers normal (except Genus 

 Chamcea, in which the first pri- 

 mary is more than half as long as 



second) Paridae : 



Fig 183. Nuthatches and Tits, p. 452. 



ORDER GALLING: GALLINACEOUS BIRDS. 

 (FAMILIES TETRAONIDJE, PHASIANID^E, AND CRACID^E.) 



FAMILY TETRAONIDJE: GROUSE, PARTRIDGES. 

 QUAILS, ETC. 



KEY TO GENERA. 



1. Legs feathered down to base of toes. 



2. Tail feathers narrow and pointed. 



Centrocercus, p. 133. 



2'. Tail feathers broad and rounded. 



3. Sides of neck with tiift of feathers. 

 Fig. 184. Tympanuchus, p. 129. 



