Displays of terns are more aerial than those of gulls and include "fish flights" in which one bird postures while carrying a fish.
This display is followed by "fish flights", where the male will offer fish to the female.
Action includes preening, fishing, flight, fighting, feeding and waddling.
There are reports of aerial hunting, with birds hovering over the water and swallowing fish in flight, and hunting from perches (Willard 1985).
Catch fish quickly in flight or while flutters on the same site, often in large flocks.
They then use their reversible outer toe to aid in gripping and reorienting a fish during the flight back to a favored feeding perch.
Most of the dances, though, are for five, and to watch how Sen plays two off against three, and then a different two against a different three, and then maybe one against four, is like watching a school of fish, or a flight of birds, in their maneuvers.
Schooling behavior, join, leave, or stay decisions in fish, and intermittent flight in birds might also be worthy of study in an acoustical context.
The highly synchronized formations that characterize schooling in fish and the flight of certain bird groups have frequently been explained as reducing energy expenditure.
No statistically significant differences were observed between fish after space flights and ground controls either after 9 or 16 days.
