Since that is the case, what do these kills look like? For example, how do you know it's a mink and not a weasel? If a weasel, might that not explain part of your inability to trap it?
Also, what is the whole situation with these lost birds? Lost during the day? At night? What type of coop? In short, how is a mink able to get to your birds to do their damage?
Also, what is the whole situation with these lost birds? Lost during the day? At night? What type of coop? In short, how is a mink able to get to your birds to do their damage?