When a greylag gander likes a Canada goose a whole lot, sometimes this happens
Greylag goose (Anser anser) and Canada goose (Branta canadensis) with their hybrid offspring
Olympus E-M1 II, Panasonic 100-300 II
100mm, f/4, 1/640s, ISO 200
What do the goslings grow up to be? Are they noticeably hybrids? Are they able to reproduce, or are they like mules? If they can reproduce, why don't we see Canadian Greylags... or do we?
@sxan Hybrids grow up to be very obviously hybrids. I think they usually can't reproduce, or at least have low enough fertility that it rarely happens.