I have a new pup that will be 12 weeks old this Wednesday. I got her when she was 10 weeks, and a few days later started throwing duck wings for her in the house, and she took to them immediately. So middle of last week I had killed some mallards, and also a spoonbill. So out of curiosity I took the spooner into the back yard and introduced her to, and she went bat shit crazy over it, she loved it. So I threw it for her a few times and she picked it up with a good hold and brought it back to me. I quit after 3 to 4 tosses. This weekend I took a teal out of the freezer and threw it for her with the same results as with the spooner. I also throw a few bumpers for her everyday. My question is, can anything negative come from throwing birds for her this early?