How Do Birds steer without a Rudder?

[Grumpy Old Nasho]

What's the aerodynamics behind it?

[facthunter]

They tilt their tails and Have wing slats and they are Ornithopters. No Plane will ever be as good. Nev

[onetrack]

The answer is in the link below. Their whole body is very flexible, and their tailfeathers do multiple jobs. I took a shot at a Ringneck parrot with a .22 many years ago, and the bullet grazed the parrots body, at the base of his tail feathers.

He took off, but couldn't fly properly, wobbling all over the place, and he ended up making a crash landing. It was very obvious he'd lost the ability to control his tail feathers.

 

https://aviation.stackexchange.com/questions/100763/how-do-birds-coordinate-their-turns#:~:text=2 Answers,1

[old man emu]

5 hours ago, Grumpy Old Nasho said:

What's the aerodynamics behind it?

GON, that's an excellent question and I congratulate you for posing it. 

 

I like to see such posts from members.

[willedoo]

6 hours ago, onetrack said:

He took off, but couldn't fly properly, wobbling all over the place, and he ended up making a crash landing. It was very obvious he'd lost the ability to control his tail feathers.

When you stick a grass straw up a March Fly's bum and let it go, they fly off in a straight line and can't turn.

[willedoo]

A dry grass straw that is; you'll have a lot of trouble trying to get a soft green one up there.

[Grumpy Old Nasho]

Watch this model ornithopter turn continually to the left without a trimmed rudder. Amazing!

 

 

[rgmwa]

1 hour ago, willedoo said:

When you stick a grass straw up a March Fly's bum and let it go, they fly off in a straight line and can't turn.

Can’t turn or are just in a hurry to get away?