HERON. 63 



24.— CAYENNE NIGHT HERON. 



Arclea Cayanensis, Ind. Orn. ii. G80. Gm. Lin. i. G2G. 

 Le Bihoveau de Cayenne, Bvf. vii. 439. PL enl. 899. 

 Cayenne Night Heron, Gen. Syn. v. p. 58. 



SIZE of the European Species, but more slender, and the legs 

 longer; length twenty inches. Bill black; lore pale green ; crown 

 of the head white; a streak of white from the nostrils, passes beneath 

 the eye, towards the hindhead ; the rest of the head black, ending 

 in a point on the back part of the neck ; from this last springs a 

 crest of six long feathers, of unequal lengths, half of them white ; 

 the rest black ; the general colour of the rest of the plumage bluish 

 ash-colour, darkest on the back and wings, which are marked with 

 a blackish streak down the shaft ; quills black : it is high mounted 

 on its legs, and the thighs bare for a great length, the colour of 

 which, as well as the legs, is yellowish. 



Inhabits Cayenne. 



A. — Size of the Night Heron. Bill the same and black; head 

 and neck black ; forehead and crown white ; from the nape three 

 long white feathers as in the European Species ; under the ears an 

 oval patch of white ; general colour of the plumage pale blue grey ; 

 but the feathers on the back and wings are blue black, with silvery 

 grey edges; quills and tail blue grey, the last short; legs yellow. 



Inhabits New-Holland. 



B. — Length twenty-two inches. Bill dusky, three inches long, 

 with a slight notch near the tip ; crown of the head white, ending in 

 several long feathers hanging behind, the rest of the head black ; 

 on the cheek an oval large patch of white, finishing at each end in 



