TEXAS NIGHT HAWK 



seen flying at a greater height, and occasionally 

 giving its rather loud, penetrating call which 

 resembles the syllables pee-a, though it is much 

 more silent in its winter haunts than it is in the 

 breeding season. 



The long narrow wings with a white area on 

 each are characters conspicuous when it is seen 

 in flight. 



3. Chordeiles acutipennis texensis (Lawrence) 

 Texas Night Hawk 



Length, 216 mm. (8.50 in.); tail, 102 mm. 

 (4.00 in.). 



Male. Similar to C. virginianus virginianus 

 but smaller and with somewhat lighter and more 

 blended coloration, the white wing patch nearer 

 to the tip than to the bend of the wing, instead 

 of about midway between the bend and the tip, 

 as in C. virginianus virginianus. 



Female. Similar to male but the white mark- 

 ings replaced by tawny, those on the wings and 

 tail much broken up into tawny spots. 



A common winter visitor, sometimes to be seen 

 at dusk near Colon in large flocks. 



36. Family NYCTIBIID^E 

 The Potoos 



A small family of tropical American birds 

 related to the goatsuckers and commonly 

 made a subfamily of that group in older clas- 



173 



