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THE WILSON JOURNAL OF ORNITHOLOGY • Vol 123. No. 2. June 2011 
recorded in Al «g°as. Brazil in October 2007. (A). Perched exposed on tree after 
Soarine Note wto " " \ " ps '° ea,hers on mantle, back, secondaries, and primaries (Photograph by Sergio Seipke). iB 
^Xi^^ Hno ^ 1 '? COVCrt i k . b ° ldly Pal,erncd Prices contrasting with rest of undenting and bulgutg 
(Photograph by Sergio Seipke". WUlgS ' * '*** ^ “ dark base of lhe tail and onIy one subterminal black b3nd 
Ventral black tail bands were similar among all 
the putative subspecies (F 3-93 = 1.32, P > 0.10) 
and the remaining tail bands varied somewhat 
between the subspecies. L. c. mexicanus has 
narrower ventral white tail bands (25.0 mm, 
15.23-44.98 mm) than the other two subspecies 
(Z-. t. monachus = 34.6 mm. 14.12-63.62 mm; 
Lc. cciyanensis = 31.5 mm. 10.43-48.33 mm) 
I his relationship explained little of the variance 
among subspecies (r* = 0.14. F 3M5 = 5.83, P < 
0.05). The dorsal black band was greater for L 
c mexicanus (49.3 mm. 26.35-66.83 mm) than 
lor Z.. c. cciyanensis (38.6 mm. 13.37-56.3 mm 
r '.7 °*? 8 ’ f ' 93 = 3 79 - P < °-05). The dorsal 
whtte band was larger in L c. monachus 
(24.^ mm, 12^4-63.6 mm) than L. c. mexicanus 
(15.4 mm, 6.82-39.18 mm, r = 0.1 1 . F, = 
5.02 P < 0.05). Thus, while the overlap in tail 
band width varied among subspecies and the 
difference in band width only explained between 
8 and 14% of the variance in band width, we 
conclude that band width does not distinguish 
among subspecies. 
v aHdiry of Leptodon Jbrbesi.- Examination of 
museum specimens and photographic records of 
2-' oi the 41 individuals detected in the field 
surveys were convincing that the species Lepto¬ 
don forbest (Swann, 1 922) is a valid taxon 
Leptodon forbesi (Swann, 1922) 
White-collared Kite 
Govi5o-de-pescogo-branco (Brazilian name) 
Milano Cuello Blanco (Spanish name. 
Seipke el al. 2007) 
Odontriorchis forbesi Swann 1922. Type-local 
ity: Pernambuco, Brazil; Leptodon forbesi Hcl - 
mayr and Conover 1949:26. Type-locality: Per¬ 
nambuco, Brazil. 
Holotype, —NHM 1887.5.1.723. Adult spec 
men, unidentified sex. housed at the Natural 
History Museum at Tring. United Kingdom- 
Collected in Pernambuco, Brazil. ^ 
Known Specimens. —Type NHM 1887.5-1 - ’ 
MZUSP 38922; MN 34416. MN 34417 and MN 
34418 (Teixeira et al. J987a). 
Diagnosis.—Leptodon forbesi can be disi' n 
guished from its congener. L cayanensis, by llK 
white color of the hind collar, instead ot a" 
inconspicuous and undelimited medium to P* 11 ' 
neutral gray; mostly white in the underwingco_ vcrl ' 
rather than all black; and under surface ot 
secondaries predominantly white with gt e,li 
reduced black barring in comparison to the other -1 
(Fig. 2; color plate in Seipke et aJ. 2011 1 . 
Morphological Variation.— The slate l?a) 
feathers of the mantle, scapulars, upper" 
