It means they are in the same flock
Similar in size, if you mean common pigeon as the rock dove.
A homing pigeon is a domestic pigeon trained to fly from one place to another.
it means that a pigeon died outside of a church...
You can breed any pigeon with another pigeon but if you are looking for performance, the best way to go it to mate two performance pigeons.
ugly bird
Columba palumbus
A sequence is the following of one thing after another
Pigeon-livered/lacking gall = timid, easily frightened
would it be to do with the pigeon being a bird and bird meaning a pretty girl
Pictures of pigeon decoys could be found on the Google image search page when one typed "pigeon decoy" in a search field. Another place is a hunting catalog that tells about pigeon hunting.
for reproduction......
It means that they are in love with you.