Ah, yeah, I did try putting the food in the one's mouth. He did not start swallowing, but I likely should've gotten it a bit further in to his mouth. I think it's one of those things where practice and technique makes a big difference (I've volunteered at a wildlife center for several years and everything from feeding baby birds to tubing baby opossums, to moving adult hawks is way easier the fifth+ time than the first no matter what). Hopefully I never need to try again with the remaining two. Although I appreciate learning new techniques and theories, I'm far happier when the animals don't need them!