I interpreted the thickness of it as an indication that the blood stopped moving when the duckling died?
There is only one other duckling in there and he still has a fair bit of room between him and the air sac.
I'll try taking some pics of him with the candler.
There is only one other duckling in there and he still has a fair bit of room between him and the air sac.
I'll try taking some pics of him with the candler.