I am hoping for some information on using geese as livestock protection. I am looking for first hand recommendations on which breeds of geese make the best protectors of chickens/ducks. I have always heard African geese are supposed to be the best, but are there any less noisy options? Is it the wall of noise created by these geese that make them such effective guards? Are they only effective against other birds or do they work against small mammals as well? Thanks in advance!