I have had two tree swallow families in "slot faced" boxes on my fence line about 50 feet apart. No one fought and they have returned every year. Hope this helps.
yes.to prevent diseases.
By chirping.
They made the houses themselves and sold them among each other somewhat like we do now.
Lots of animals in the rainforest eat each other like there are lot of bird eating bird species who like to snack on each other
First, get a cat. Swallow it. Then try again.
Birds tend to not like each other, especially if they are the same type of bird.
bird
Because their jaws can be separated in a way that they are not connected to each other anymore;
They make bird like chirps as warning calls or to find each other when they are lost.
Yes, and they swallow each others bodily fluids
Of course - with their own mates, but not with each other.
A mummy pheonix bird and a daddy pheonix bird decided to dedicate their love for each other,the pheonix bird placed his limo in the mummy bird's garage,making the pheonix bird.