bird migration 

Bird migration is often used to mean oral sex by teenagers in Australia, the term comes from a Red Hot Chili Peppers song (21st century) where the two apparently unrelated terms are used together:

"Strangelation, altercation,
Oral sex and bird migration"

Andy: Planning a bit of bird migration?
Mike: As if, I only just met her!
Andy: Sure...

bird migration by Kylea July 10, 2006

Migratory Bird 

A long-distance girlfriend who visits on an annual basis.

Person 1: I hear your migratory bird is coming back this week?
Person 2: Yeah, she's returning to her home ground for the mating season

Migratory Bird by DrHerpDerpington September 26, 2011

migratory bird  

a man looking for another man to have sex with.

did u c da migratory bird ?

migratory bird by warfrud zenwa May 23, 2008

migratory bird 

a man who is searching for another man to have sex with.

anthony is a migratory bird(just joking u kno im joking, right?)

migratory bird by warfrud zenwa May 23, 2008

Upper Canada Migratory Bird Sanctuary 

A campground close to Morrisburgh,ON.

I want to go to the Upper Canada Migratory Bird Sanctuary

Upper Canada Migratory Bird Sanctuary by Dandras Anderson June 13, 2014