so, I'm trying to complete my Kalos Pokedex and I need 4 more Pokemans- Articuno, Zapdos, Rhypherior, and Aron

the last two is no issue, but is there any way I can get Zap/Arti without trading them from a friend? my friends are being lazy asses and have either stopped playing Pokemon, don't care about catching 'em all, or don't want to try and encounter them 10 times before being able to catch the birds, and I can't use GTS for them, as I've never seen them before

any advice?
dumping Pokefusions while I wait