Yeah, they really hide the info for shipping. Mickacoo and Mickaboo kind of run together on the site, so the info for the pigeons can be a bit hard to find. Hmm...actually, this is the only thing I could find on their actual website:
http://www.mickacoo.org/mickacoo.html (text search for 'ships', and it mentions that they do ship pigeons)
But this may actually be more helpful:
http://www.pigeons.biz/forums/f5/mickacoo-has-taken-in-19-new-pigeons-in-last-2-weeks-47903.html (scroll down a bit and Elizabeth posts from Mickacoo. Syas yes they do ship, but may not ship during very hot/cold weather). :)
http://www.rescuereport.org/ is a blog that relates back to Mickacoo and sometimes has more info
and their Facebook site is also updated more often:
Best of luck!