72 ARDEIDiE. 



or spotted appearance ; the feathers of the fore-neck light pearly 

 grey, the ornamental plumes whitish at the ends, the centre ones 

 white with broad black streaks ; the long feathers on each side of 

 the chest, the whole of the breast and abdomen, as well as the thighs 

 and under tail-coverts, light pearly grey ; under wing-coverts and 

 axillaries white : " bill dusky brown, the under mandible paler ; the 

 bare skin about the base of the bill and eye whitish buff; feet, toes, 

 and bare part of tarsi black ; iris tawny yellow, with an outer ring 

 of dark umber" {T. Ay res). Total length 36-5 inches, culmen 4, 

 wing 15-7, tail 6, tarsus 5-2. 



Adult female. Similar to the male, but with the ornamental 

 plumes less developed. Total length 30 inches, culmen 3-9, wing 

 10-5, tail 6, tarsus 5-1. 



Young. Differs from the adult in being more dingy and brownish 

 grey ; the head black, hind-neck slaty grey, as also the sides of face : 

 lander surface almost entirely white, with a tinge of fawn-colour on 

 the fore-neck, these parts being sparsely streaked with black ; the 

 patch on each side of the chest isabelline, with white in the centre. 



Hah. Africa, occasionally visiting Algeria and Southern Europe. 



«, b. Ad. et juv. South Africa. Sir A. Smith [C.]. 



St. 



c. cJJLiv. sk. Pretoria, June in (J'. Of/Ces). W. E. & C. G. 



Gates, Esqs. [P.]. 



d. S ad. sk. Potchefstroom, Transvaal, Gurney Coll. 



July 22 {T. At/res). 

 e,f. (S 2 ad.sk. Uniziela's Country, May (TI^. Gurney Coll. 



Aijres). 

 ^. Juv. sk. Upper Shir6 River, Nov. (.<4. H.H.Johnston, Esq., 



Wkyte). C.B. [P.]. 



h. Imm. sk. Usambara Hills, Pangani R. Shelley Coll. 



(Kirk). 

 i. Ad. sk. Mombasa. Rev. A. F. Buxton 



k. S ad. sk. Adabaga, Tigr^, Abyssinia, W. T. Blanford, Esq. 



7500 feet, May 20. [C], 



/. Juv. sk. Fantee, VV. Africa {H. T. Sharpe Coll. 



Ussher). 



m. Ad. sk. Benguela. Monteiro Coll. 



n. Skeleton. S. Africa. Earl of Derby [P.]. 



o. Skull. Gambia. Earl of Derby [P.]. 



6. Ardea cocoi. 



The Blew Heron, Albin, Nat. Hist. B. iii. p. 74, pi. 79 (1740). 



Le H6ron hup6 de Cayenne, Briss. Orn. v. p. 400 (1760). 



Ardea cocoi, Linn. Si/st. Nat. i. p. 237 (1766) ; Gm. Syst. Nat. i. 

 p. 629 (1788) ; Ltc/if. Verz. Douhl. p. 77 (1823 : San Paulo) ; 

 Neuiuied, Beitr. Naturq. Bras. iv. p. 598 (1833) ; Gray, List 

 Grallce Brit. Mus. p. 76 (1844) ; id. Gen. B. iii. p. oo5 (1847) ; 

 Hartl. Ind. Azara, p. 22 (1847) ; Gay, Faim. Chileti. i. p. 409 

 (1847) ; Tschudi Sf Cab. Faun. Peruan., Aves, p. 50 (1845-46) ; 

 Cab. in Schomb. Reis. Guian. iii. p. 752 (1848) ; Bp. Consp. ii. 

 p. 110 (1855) ; Bur7)i. Th. Bras. iii. p. 415 (1856) ; id. Reis. La 

 Plata-St. ii. p. 508 (1861 : Parana ; Tucuman ; Cordova) ; Schl. 

 Mus. Pays-Bas, Arde^, p. 6 (1863) ; LM. Ois. Trinid. p. 401 



