612 
CAYENNE NIGHTHERON. 
when it commences its ciy, which is very dis- 
agreeahle, and is compared by some to the noise 
made by a person straining to vomit. 
CAYENNE NIGHTHERON. 
i (Nycticorax Cayanensis.) 
Ny. corpore caruleo-cinereoj dor so striis nigris, capite nigro, 
pileo Jasciaque suhocidari alhis, crista occipitis sexpenni. 
Nightheron with the body of an ashy blue ; the back striped 
with black ; the top of the head and stripe beneath the eyes 
white 5 the occipital crest composed of six feathers. 
Ardea Cayanensis. Grnel. Syst. Nat. ] . 626. — Lath. Ind. Orn, 
2. 680. 17. 
Le Bihoreau de Cayenne. Buff. Ois. 7. 43Q. — Buff. PI, Enl. S99. 
Cayenne Night Heron. Lath. Gen. Syn. 5. 56. 16. 
This bird is found at Cayenne : its length is 
twenty-one inches : its beak is black : the lores 
pale green : the crown of the head is white ; and 
a stripe of this colour passes from the nostrils, 
beneath the eyes, towards the occiput : the rest of 
the head is black, ending in a point behind ; from 
which part depends a crest composed of six unequal 
feathers, half of which are white, and half black ; 
the prevailing hue of the rest of the plumage is a 
bluish ash, the back and wings benig darkest, and 
marked with a dusky stripe down the middle of 
the shaft of each feather : the quills are black : 
the naked space above the knee, and the legs, 
which are very long, are yellowish. 
