I would highly suggest people not to use this type of method!!!! It can break their leg, get them hurt, etc. This is the same method they use to capture wild birds. Such methods as it gets tighter it can and will cut off circulation to the foot which can be quite detrimental to the birds. They want to be freed from such stranglement to their leg they will start to chew on their leg and toes excessively! This is not to be taken lightly!