Yes, and they often do.
Yes, they can. A perch for pigeons in a loft is actually a round pole.
Racing loft.
it is called a roost
The parakeet rested on his perch.The migrating birds decide to perch on a telegraph wire for a quick break.
The respiratory system of a perch involves extracting oxygen from the water. Frogs can extract oxygen from water and air while pigeons and pigs can only breathe in air.
The wire might cut into their feet or their feet might be hard enough to stand it ( like a shell ). It would irritate and hurt anyone or anything. If you are going to be owning pigeons i would not have wire cages just in case it really does cost the birds pain and suffering.
The plural of perch, when referring to a bird's perch, is perches. The plural of perch, when referring to the fish, remains perch.
You could install chicken wire or use replicas of the bird predators to confuse them, here's a link for some ideas http://homerepairgeek.com/home-pest-control/get-rid-of-pigeons/get-rid-of-pigeons.html
There are three species of the perch: Percaflavescens (Yellow perch), Perca fluviatilis(European perch) and Perca schrenkii (Balkhash perch).
perch perkins
No. A perch is a fish.
yes, however, there are more animals outside than just pigeons...you will run the risk of killing or injuring any other animal that would happen to cross the trap you've made.