Rhymes With Orange from April 16, 2008 features a parrot which has apparently tired of seeing his pirate's ear wax buildup.
Another captioned nature photo from Cheezburger of March 28, 2012.
Another migration-themed cartoon from Mutts of October 11, 2011.
Ziggy from June 23, 2005. Gee, I wonder how that happened ...?
Speed Bump from May 11, 2010. Self-explanatory.
Non Sequitur's off-bet take on migration, from September 22, 2014.
A Six Chix entry from Margaret Shulock transfers one of human society's environmental concerns into avian society; originally from September 25, 2012.
Bizarro makes another old saying literal, in this panel from July 21, 2011.
Stupid the Bird again lives up to his name in this Diamond Lil strip from October 12, 2014.
The Cheezburger site provides this recaptioned photo from May 9, 2013 as a comment on modern social media.