48 
January 26th, 1912. — Ring-necked Parrakeet — fairly 
numerous ova — confirmed February 2d, 1912. 
January 27th, 1912. — Sulphur-crested Cocatoo — 3 eggs 
in one sHde — confirmed February 2d, 1912. Great White- 
crested Cockatoo — enormous number of ova — confirmed 
January 31st, 1912. Greater Vasa Parrot — numerous 
ova — confirmed February 2d, 1912. Mexican Conure — 
few ova (2 in one slide). 
January 31st, 1912. — Illigers Alacaw — numerous ova. 
February 2d, 1912. — Brown-fronted Macaw — fairly 
numerous ova — confirmed February 28th, 1912. Golden- 
naped Amazon — fairly numerous ova — confirmed Feb- 
ruary 28th, 1912. 
February 14th, 1912. — Crested Ground Parrakeet — 
fairly numerous ova — confirmed February 28th, 1912. 
February 16th, 1912. — Green-cheeked Amazon — 
numerous ova — confirmed February 23d, 1912. 
February 21st, 1912. — Blue-fronted Amazon — great 
numbers of ova — confirmed February 23d, 1912. Rose- 
ate Cockatoo — very numerous ova — confirmed February 
23d, 1912. 
February 23d, 1912. — Blue and Yellow Alacaw — very 
numerous ova — confirmed February 28th, 1912. 
March 6th, 1912. — Orange-winged Amazon No. 3 — ■ 
few ova — confirmed March 18th, 1912. 
March 8th, 1912.— Crested Ground Parrakeet — few 
ova. 
Prior to the above systematic examination a number 
of birds had been examined in a desultory manner while 
marking out a technique. These birds were all re- 
examined. The birds earlier detected were: — 
Examined October 4th. — Wliite-fronted Amazon (2409) 
confirmed at autopsy. 
Examined November 1st. — Golden-naped Amazon. 
Examined November 1st. — Unadorned Amazon (2433) 
confirmed at autopsy. 
Examined November 3d. — Orange-winged Amazon No. 
3. Blue-fronted Amazon. 
