164 ARDEIDZ. 
states that a method of procuring food is by “raking” or “scraping” the ground in 
the swamps, and then pouncing on any prey which may thus have been disturbed. 
He also saw this Egret in companies, hovering above a shoal of small fishes, and 
endeavouring to catch them after the manner of Terns. Two or three nests composed 
of sticks are generally placed in the same low tree overhanging the water. The eggs 
are two or three in number, of the usual blue colour. 
“4, Ardea tricolor. 
Heéron bleudtre & ventre blanc de Cayenne, Daubent. Pl. Enl. viii. t. 350’. 
Ardea tricolor, P. L. S. Miill. Syst. Nat., Suppl. p. 111°. 
Hydranassa tricolor, Ridgw. in Baird, Brewer, & Ridgw. Water-Birds N. Amer. 1. p. 40°; Sharpe, 
Cat. Birds Brit. Mus. xxvi. pp. 126, 273‘; Salvad. & Festa, Boll. Mus. Torino, xiv. no. 339, 
p. 11’. 
Ardea ludoviciana (nec Gm.), Wilson, Amer. Orn. viii. p. 18, t. 64. fig. 1°; Salv. Tbis, 1889, 
p. 376". 
Demiegretta ludoviciana, Scl. P. Z. S. 1860, p. 253°; Scl. & Salv. P. Z. S. 1864, p. 371 °; Salv. 
Ibis, 1865, p. 1927; 1866, p. 196"; Lawr. Ann. Lye. N. Y. ix. pp. 142 % 210”. 
Hydranassa tricolor ludoviciana, Ridgw. in Baird, Brewer, & Ridgw. Water-Birds N. Amer. i. 
p. 89"; Nutting, Pr. U.S. Nat. Mus. vi. p. 379”. 
Ardea cayanensis, Licht. Preis-Verz. Mex. Vig. p. 3"; Cab. J. £. Orn. 1863, p. 59”. 
Herodias leucogaster (nec Gm.), Gray, List Gralle Brit. Mus. p. 79”. 
Demiegretta leucogastra, Sumichr. La Nat. v. p. 233”. 
Egretta ruficollis, Gosse, Birds Jamaica, p. 338, pl. 93”. 
Ardea tricolor ruficollis, Ridgw. Pr. U. S. Nat. Mus. viii. p. 855°; Ferrari-Perez, Pr. U.S. Nat. 
Mus. ix. p. 169”; Zeledon, An. Mus. Nac. Costa Rica, i. p. 130 (1887); Stone, Pr. Acad. 
Philad. 1890, p. 203°‘; Richm. Pr. U. 8S. Nat. Mus. xvi. p. 527”; A. O. U. Check-l N. 
Amer. Birds, 2nd ed. p. 72”. 
Hydranassa ruficollis, Sharpe, Cat. Birds Brit. Mus. xxvi. pp. 127, 274°; Oates, Cat. Eggs Brit. 
Mus. ii. p. 122”. 
Ardea leucoprymna, Licht. Nomencl. Av. Mus. Berol. p. 89”. 
Demiegretta leucoprymna, Lawr. Mem. Bost. Soc. N. H. ii. p. 310”. 
Demiegretta leucogastra, var. leucoprymna, Lawr. Bull. U. S. Nat. Mus. no. 4, p. 48”. 
Supra saturate schistacea, paullulum lilaceo adumbrata, plumis elongatis dorsalibus lilacino-brunneis, apicem 
versus albicantibus ; alis caudaque schistaceis ; pileo saturate schistaceo, nuche collique plumis elongatis 
violascentibus ; crista mediana plumis albis, interdum absentibus, ornata; facie laterali et colli lateribus 
saturate schistaceis, his elongatis et violascentibus; mento et gula superiore pure albis, gutture et pree- 
pectore medio vinaceo-castaneis, hujus plumis quoque basaliter plus minusve albis ; corpore reliquo subtus 
cum subalaribus et axillaribus pure albis; remigibus intus canis: rostro cyaneo, apicem versus nigro, 
basin versus lilacino; area nuda lorali lilacina ; pedibus schistaceis ; iride rubra. Long. tota circa 18-5, 
alee 10°8, caudex 3°5, culm. 3-9, tarsi 4:1. (Descr. maris adulti ex Tampico. Mus. nostr.) 
© mari similis. Long. tota circa 20°0, alee 9°7. 
Ptil. hiem. ptilosi estive similis, sed plumis ornamentalibus absentibus ; crista nuchali nulla. 
Juv. adultis similis, sed pallidior, notezi plumis ferrugineo vel castaneo-rufo lavatis et marginatis; dorso 
postico, uropygio et supracaudalibus albis; pileo, facie laterali et collo castaneo-rufis, hoe lateraliter 
plumis schistaceo-dimidiatis ornato ; pectoris quoque lateribus dimidiatim schistaceis et albis; gula alba; 
gutture maculis rufis et nigris variegato ; corpore reliquo subtus pure albo. 
