The Annual Cycle of Purple Martins
45:07
Purple Martin
18:04
Purple Martins and their man: Peter Huszcz
16:31
Purple Martin House - Annual Maintenance & Cleaning
27:49
Geo Locators on Purple Martins to learn more about migration. PMCA
13:43
MASSIVE Purple Martin Migration! (~10,000 birds) Have you ever seen anything like this?
52:45
Les routes secrètes des oiseaux migrateurs
18:23
Designing and Building a Purple Martin Birdhouse MM 136
1:03:51