Answer:
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths.
I travel in a gaggle.
I transfer oxygen from the atmosphere to your blood
I am a kind of coat that can only be put on when wet. What am I?
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk