anatid
anseriform
avian
beak
bird
black_and_white
cc-by-nc
comic
creative_commons
cueball_(xkcd)
dialogue
duck
english_text
female
group
human
humor
license_info
line_art
male
mammal
megan_(xkcd)
monochrome
randall_munroe
simple_background
stick_figure
text
what
white_background
xkcd
