74 



THE RAPTORIAL BIRDS OF IOWA 



6. ACCIPTER COOPERI (Bonaparte). 333. 



Cooper's Hawk. Little Hen Hawk. Chicken Hawk. 

 Blue Hen Hawk. 



Field Characters. A medium-sized slaty or brownish hawk, with 

 long rounded tail; streaked or barred beneath; flying by continued 

 strokes of its rounded wings, or sailing for short distances, but not 

 usually soaring. 



Fig. 25 Cooper's Hawk, adult. 



Description. Above, slaty with blackish crown, flight feathers 

 barred ; rounded tail with dusky bars and tipped with white. Below, 

 with reddish buff barring on white background. 



Immature: Dusky above, the feathers edged with buff; below, 

 white, with dusky or brownish streaks ; tail barred. 



Measurements. Length, 14 to 20 inches ; wing, 9 to 11 inches ; tail, 

 8 to 10.50 inches. 



