Common Nighthawk Medical Exam

Nighthawks are migrating like crazy through the Twin Cities right now.  I've seen them when we've been grilling this week and on Saturday we were on the St Croix River with some friends and a steady stream passed over the boat all afternoon and well into the night (I'm not ready to face fall migration). Injuries are inevitable during migration and here's a video of a common nighthawk medical exam at the Wildlife Rehabilitation Center of Minnesota this week--watch how big that mouth gets with the bird starts fussing during the exam: