ASCII Owls
Researcher cynthia-ga found this ASCII owl in her web wanderings:
{o,o}
|)__)
-"-"-
But the genre goes back further than that. Modernmechanix.com is featuring an article from a 1948 issue of Popular Mechanics that shows an owl created with typewriter art:

Here's another, from http://www.asciipr0n.com/m1a9366b/ascii/owl.html (I didn't hyperlink the URL because some of the other ASCII Art at that site is adult-oriented):

August 17th, 2006 at 12:05 pm
{o,o}
|)__)
-”-”-
O RLY?
January 17th, 2008 at 6:25 pm
{o,o}
|)__)
-”-”-
ya rly.
February 3rd, 2008 at 8:37 pm
{o,o}
|)__)
-”-”-
no wai
April 22nd, 2008 at 7:03 pm
I hacked this owl, including initials :)
…`@.@´
…(,,v,,,)
—R”W”P————————
January 15th, 2009 at 2:58 am
{O , O}
( ; ; ; )
m m
fat owl
June 30th, 2010 at 11:42 am
^_^
{o,o}
|)__)
-m-m-
August 27th, 2010 at 9:55 pm
YAORLY GUISE
^ … ^
/ O , o \
\ /
|) : : : (|
“;,. .,;”
=W=W=
October 28th, 2010 at 1:47 pm
„__„
{o,o}
|)__)
-”–”-
O RLY???
December 21st, 2010 at 10:09 am
(\ /)
( . .) < (…wrong forum…)
(")(")
January 9th, 2011 at 1:58 am
|”_”|
(OO)
\/
( )
|_|_
King owl
March 20th, 2011 at 6:45 pm
, ,
(o,o)
|)__)
-”-”-
May 24th, 2011 at 10:53 pm
.__.
(°,°)
/)_)
” “
March 30th, 2012 at 4:30 pm
*__*
{O’O}
/)_)
” ”
DOH! owl
February 14th, 2013 at 10:44 pm
{ಠ□ಠ}