im kinda of worried here i have a 4 month what i thought was a brown chinese beacause of the long narrow neck but i was away since sunday to tuesday evening and this morning i went outside to check my geese and my brown chinese instead of a long narrow neck had a thick swollen neck with a bump on his head im not sure whats going on i grabbed him and checked him out closely and felt his neck and it felt like it was full of air should i be concern? heres a pic notice that lump on his head is that normal? 2nd pic shows more how swollen neck has gotten do ya think maybe he ate something he wasnt suppose to or maybe got stung on the head? i dont know i just hope its nothing serious. thanks every1 in advance for their input or suggestions!