i have a mixture of ganders and there ladies, we got them for our farm after our diesel and heating oil were stolen again for the third time. Boy do them ganders want to protect their ladies, in the evening they are shut up in a large compound with the fuel tanks, even i wouldnt want to go there in the dark, gerald the biggest gander knows what to do with his beak and it really does hurt on the backside when he gets you. best investment for guarding we evermade even caught someone in the yard with them making so much noise, didnt get our diesel but they got the neighbours, police wouldnt do anything though because the diesel, even though in the van that these people were in, it was out on the public road and my neighbour couldnt prove it was their diesel so they got away with it and managed to keep the diesel, geese are ebdems and brilliant not just for guarding but for entertainment value too.