i done it two years ago i took two white old birds there young plus eggs
teachers were coming from other classes to have a look the kids were thrilled when i asked who wanted to hold the young birds (not flying)
i put a cloth under the young incase of any miss haps
it was quite nerve rackiing talking pigeons when the class is full but the kids really enjoyed it
i wish i had taken a basket full of birds and liberated them given each kid a ring number first bird on my ets would have won a prize but i never thought about it until i left