Pere el DAU BeO; Nee Bild Dla By alot N, 19 
Pictorial Descriptions of Black-headed Gull 
(As traced from our field notes.) 
Drawings by H. David Bohlen: 
flead Sar Pe wing v2 Light 
Mottled 
Brown 
LJindow 
Slack Tia 
Drawings by Vernon M. Kleen: 
wisp ta blight 
— verry 
potted 
Visible cota: 
(not this clark, bu? ai SN pee es 
Head 
sed ash! 42 
@ ; “3 
ee | darker cove 
These drawings have been traced as close to accurate as possible from the original 
field notes. nips Sy es 
WV. Buk Site. JEetuen 72) Alba 
H. David Bohlen Vernon M.~ Kleen 
following: 1) had a two-tone effect on leading edge of wing when flying 
directly at me; I noticed this three times. 2) more gull-like flight.” 
Vern Kleen: “Bill—red with slight black tip; feet—red, not pink like 
nearby Herring Gulls; head with black spot behind and below eye; gray- 
black stripe (narrow) from edge of eye over top of head (narrower than 
shown in drawing); crown with grayish area on top. The wing, as the bird 
sat on the ice, appeared to have a dark edge somewhat like the illustration; 
the wing, as seen when flying, is also illustrated; I don’t have complete 
details, but remember the white section in the primaries, dark leading edge 
