To stabilize their flight.
Flightless birds do not need a large keel because they don't have functional wings for flight, so there is no need for the large breastbone attachment needed for flight muscles. The keel is an adaptation found in birds that use their wings for sustained flight.
Birds use the four forces of flight (lift, weight, thrust, and drag) by flapping their wings to generate lift and thrust. They adjust the shape and angle of their wings to control lift and maneuverability, while altering their body position and speed to manage drag and weight. By combining these forces effectively, birds can achieve sustained flight for various purposes such as foraging, migration, and predator evasion.
The glue used to reattach the birds' tails contained harmful chemicals that could be toxic to the birds when ingested or absorbed through their skin. The scientists were concerned about potential negative effects on the birds' health and well-being from exposure to these chemicals.
A flock
One example of a bird with a forked tail is the swallow. Swallows are known for their long, pointed wings and distinctive forked tails, which help them maneuver swiftly while catching insects in flight.
It is used mostly for flight- like a rudder on a boat. It is also used for balance, and, in mating season, some male birds use it for display.
A birds tail swerves its body left and right. It also has drag.
Insects do have tails. They use it just like birds do.
These birds are insect eaters, and in common with other carnivorous birds that seek food on the wing, they use their fan of tail feathers to provide braking of flight in order to change direction quickly.
they use it to steer their body in the sky
Honey badgers use their tails to climb trees to raid the nests of birds.
Mostly for flight.
Oil glands in birds, located near the base of their tails, produce a substance called preen oil. Birds use this oil to condition and waterproof their feathers, keeping them clean, smooth, and insulating. This allows birds to maintain the necessary balance of warmth, buoyancy, and flight efficiency.
The birds quickly took flight.
Heracles shook a rattle that Athena gave him to get the birds to take flight and then shot as many of them as he could.
what is the significant of birds first flight
Some have very ornate tails, used in attracting mates.