APPENDIX. 



Since the preceding pages were printed, additional specimens of certain rare 

 'or little known species have been examined, and various facts have become for the 

 first time known, rendering necessary the following memoranda. 



Genus ARDEA Linn^us, pages 128, 129, 



The examination of eight additional specimens of Ardea louerdemanni renders 

 necessary a revision of the diagnosis of this form and its allies, as follows : — 



0*. Color nearly uniform bluish gray above, the lower parts usually striped with 

 black and white (sometimes entirely white). 

 p. Adult with head entix'ely white, except (usually) black or dusky streaks on 

 forehead, or (very rarely) a blackish patch on sides of crown or occiput, 

 beneath edge of crest ; shoulder-knots broadly striped with white, and 

 (usually) tinged with rusty ; lowermost wing-coverts with more or less 

 of their outer webs white ; outer web of exterior tail-feather with a 

 large white wedge-shaped patch on basal portion ; lower parts white 

 (the anal region entirely so), the breast and belly (medially) usually 

 striped or streaked with black, dusky, or brownish gray ; gray of upper 

 parts of an ashy tint; length 48.00-50.00, wing 18.75-21.00 (19.39), tail 

 6.25-8.00 (7.21), culmen 5.75-6.70 (6.14), depth of bill at base 1.20-1.30 

 (1.24), tarsus 7.30-8.75 (7.80), naked portion of tibia 4.50-5.50 (4.99), mid- 

 dle toe 4.20-5.20 (4.63). Hab. Southern extremity of Florida, chiefly (?) 

 in the vicinity of Cape Sable, and on Florida Keys ; Cape Florida (?) ; 

 Jamaica (?); accidental in southern Illinois (Mount Carmel, Sept. 11-22, 



1876) — . A. wuerdemanni Baird. Wiirdemanii's Heron. 



/^ Adult with sides of forehead (to considerably in front of eyes), together with 

 whole crown and occiput (beneath crest), including longer crest-feathers, 

 uniform deep black ; forehead and centre of crown pure white, without 

 dusky streaks ; shoulder-knots entirely deep black, or (rarely) narrowly 

 streaked with white, and without admixture of rusty ; lowermost wing- 

 coverts without white on outer webs ; outer web of exterior tail-feather 

 without distinct wedge-shaped space of white ; breast, belly, and anal 

 region deep black (the last entirely so), the breast and belly broadly 

 striped with white ; gray of upper parts of a deep plumbeous tint. 



583 



