■i a! / '/ 
^%Ca 4, ' ffrp £4&S <-'<*- jViit U,.vlt<sr\r x^? 
Iv^cL. __ “5 ^X- : 'Y^ J~ ^f~ ' 
A~ C ooper’s Hawk occupied twenty-seven 
days in incubation. My experience would 
indicate that hawks occupy fronTtwenty- 
;six to twenty-eight days tor incubation. 
— F. II. Carpenter , Rehoboth, Mass. 
VII- frd'- ’W* /• H ! 
The day following while hunting for Hawks eggs, a 
Cooper ’s Ilawk , ( A , cooperi), flew across my path and lit on 
an adjoining tree. After examining live nests without suc- 
cess I finally climbed up to an old Squirrel’s nest and found 
the eggs (4) which were secured. 
O.&O. IX. Dec. 1884. p. Hi. 
CL,lW 
A ccip iter cooperi : May 4, set of four, Cedar 
i Swamp. May 11, set of five, Gate’s Pond, three 
sets of four, Hell Gate, Polly Works Brook and 
Brown’s Mountain. May 18, one fresli egg, Mo- 
. hegan, set of five, Spicer Ledges. May 29, five 
fresli eggs, Kinney’^W. ./June 18, set of five inc., 
Gardner’s Lak e.J'-Tfc/r <Jr Ctusev. 
O.&O. X. Feb. 1885. p.-W' 
Listof Birds of Colorado. 
Charles F. Morrison. 
107. Accipiter cooperi (Bonap.). Cooper’s 
Hawk. Summer visitant (?) in northern por- 
tions; resident in the south ; common. Breeds 
in trees, or upon rocky ledges of the canyons, 
and the immense ‘ ‘ wash-outs ’ ’ of the prairie. 
It preys upon Grouse, Hares and reptiles. Its 
fondness for the ranchman’s poultry is very 
i nearly paid for by the insects it eats ; both this 
and the preceding, adding grasshoppers and 
bugs to its bill of fare. Eggs are pinkish- 
| white, sometimes faintly spotted with light 
brown. These spots or blotches are often 
j nearly obsolete. Three or four are the number 
i to a clutch, with extreme sets of five. I will 
| say here that the farmer and ranchmen of the 
; West will find this and A. velox more their 
friends than enemies, although in the East 
i where its natural prey is scarce, this can 
hardly be said, as its frequent descents into 
the poultry yard will attest. 
O &0. XIV. Jan. 1889 p.7 
