AEDEOLA. 201 



£. virescens. 124". Above green. Sides of face chestnut. Froni N. and C. America. 



£. anthonyi. Similar to £. virescens. From Colorado. 



Also the genus Pilerodius. With four long white nape-plumes. One species — P. pileaius, 

 25", white, entirely confined to S. America. 



Also the genus Tigromis, with fore cheek bare. No dorsal plumes, and plumage barred. 

 One species — T. leiicolopha, 28", above greenish black, from W. Africa. 



Also with tarsus transversely scaled : — 



The genus Zonerodius. With crest-plumes full and rounded. One species — Z. heliosylus, 

 21", above black, barred sandy, from New Guinea. 



Also the genus Heterocnus. With throat feathered in centre and bare at sides. One species — * 

 H. cabanisi, 27", above brown, with black shaft lines, from 0. America. 



Also the genus Tigrisoma. With throat bare. Five species — T. lineatum, 20", olive-brown, 

 barred and streaked black, axUlaries black, broadly banded white, from British Guiana and 

 C. America ; T. marmoratum, 28", similar to T. lineatum, but axillaries slaty, finely barred 

 white, from S. America ; T. bahice, 24", similar to T. lineatum, but breast and abdomen barred 

 brown, from E. Brazil; T. fasciatum, 28", with head and neck black, from 8.E. Brazil; 

 T. salmxmi, 27", colour brown, and axillaries uniform without bars, from N. of S. America. 



Bill as long as mid toe and claw. 



Genus ARDEOLA. 

 ArdeSla, diminutive of ArdSa. Ardla, ce, f.-=ipaSi.6s'=a. Heron (Virgil, Georg.. i. 364). 



Head, neck, and back always coloured, but colour changes completely at breeding 

 season. Wings, body, and tail -white. Long ornamental nape-plumes. Tibia 

 feathered to the knee nearly. Dorsal train well developed. Confined to the 

 Old "World. 



219. Ardeola grayi. The Paddy-Bibd or Pond-Hbron. 

 Bagia, India; Gudi-konga (Telugu); Kana-koka, Ceylon; Hbyein-ouk, Burma. 



$ 18^". Legs dull green. Bill 3", blue, yellow, and black. — In summer: Long 

 pointed occipital crest white. Head and neck yellow. Back maroon. — In winter: 

 Head, breast, and thigh fulvous. Persia, India, China, Burma, Andamans, Nicobars, 

 and Laccadives. Six eggs (148 x 1-17), greenish blue. (J. 930. B. 1565.) 



220. Ardeola bacchus. The Chinese Pond-Heron. 



^ 21"; 11 oz. Legs bright orange. BiU 3-^", black," yellow, and pale blue. — 

 In summer: Chin and neck-stripe white. Head and back of neck chestnut. 

 Nuchal crest of long pointed chestnut feathers; longest 4". Breast and side 

 feathers disintegrated. Back black ; rest of bird white. — In winter : Similar to 

 A. grayi. E. Siberia, Japan, China, Burma, Malay Peninsula, Borneo, and 

 Andamans. (B. 1567. S.F. ii. 481.) 



Also similar to A. grayi, with back and dorsal train rufous : — 



A. ralloides. 21". Head streaked black. From Africa, summering in Mediterranean 

 countries, S. Kussia, and Caspian. 



A. idee. 18". Head streaked black. From Madagascar. 



Also similar to A. hacohus, with back and dorsal train black : — 



A. sfeciosa, 15". Head and neck tawny. From Java, Sumatra, Borneo, to Celebes. 



Also the genus ErytTirocmis. With neck-frill full, but without long ornamental plumes. 

 No dorsal train. One species — E. rufiventris, 17J", black above, confined to Africa. 



