Marvellous murmurations: why do birds flock together?
Celebrate International Migratory Bird Day 2015! « Conserve Wildlife Foundation of New Jersey
Saw a Bald Eagle flying away with a fledgling crow yesterday : r/SeattleWA
Meet the Bird Buddy Flock - Bird Buddy Blog
Gear, goods to celebrate birds and a big global count
Do Birds of a Feather Flock Together?
Adding Another Bird to The Flock
Birds flying inside the chimney : r/Wellthatsucks
Flocking Together for Birds – Connecting People, Birds and Land for a Healthy World
Keeping Starlings off Bird Buddy (UK) : r/BirdBuddy
National Geographic Expert Shares Why Birds Should be Treated Like Celebrities
Why do flocks of birds swoop and swirl together in the sky? - The Washington Post