PNG MORE
Gaming & gambling
Pixel
Simply 8-bits #1
Angry, bird
Crimson
96x96
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
linux, cmd, bird
Black
16x16
Mixed
IconSweets 2
medion, bird, twitter
40x40
bird, twitter
PixeloPhilia
Blue, bird, twitter
SteelBlue
32x32
PC 100 Icon Pack
Freelance, eagle, bird
Sienna
Family & home
Shrunk Pidgin Smilies
chicken, Animal, bird
Khaki
24x24
Desktop apps
Webset Icons
twitter, Animal, tweet
48x48
Kailoon
Animal, twitter, bird
Lavender
Snow
bird, Blue, Animal
WhiteSmoke