Hi!
Firstly, sorry....but i know nothing about birds at all!!!
We have just purchased a house and the previous elderly owners kept birds and have a few aviaries in the back garden.
We have no use for these and hope to be able to hand them on to someone that can make use of them.
I will be able to take some better pictures once we are in the property on the 15th Feb, but in the meantime here is one of the estate agents pics (might need a magnifying glass!!!)
I have no idea if these are good ones or not as i wouldn't know a good aviary from a bad one!! In this picture is one massive one and 2 small ones. Think there might be others not in the picture...can't remember at the moment.
PM or email if interested.