The Offering
A male black tern brings an invertebrate offering to its mate.
The female would land on a post and wait for delivery. When she spotted the male, she would open her mouth and call out. The male would come in and do a low speed handoff (beakoff?) to the female. If they couldn't quite connect, the male would hover/flutter and move in closer again for another attempt. On occasion, the offering would be dropped. This behaviour would be repeated a number of times before the female would fly off.
The Offering
A male black tern brings an invertebrate offering to its mate.
The female would land on a post and wait for delivery. When she spotted the male, she would open her mouth and call out. The male would come in and do a low speed handoff (beakoff?) to the female. If they couldn't quite connect, the male would hover/flutter and move in closer again for another attempt. On occasion, the offering would be dropped. This behaviour would be repeated a number of times before the female would fly off.