I marked this as realistic fiction but it was a bit of a stretch.
allan eckert wrote song of the wild, which was probably my favorite book I read as a kid, at least out of books I only read once and not multiple times. I also read incident at hawks hill, based on a true story (?) about a toddler who got lost and was raised for a bit by a badger, if I recall correctly. when starling was in elementary school, she had to do an author study where she read multiple books by the same author, wrote a little mini biography, that sort of thing, and I think I influenced her to do allan eckert. I don't remember what she read, but I bought a few of his books online and this is one of them. I hope she didn't read it, because she would have hated it due to the numerous animal deaths.
I thought of eckert as a children's book writer but reading this, I'm no longer so sure about that. I wouldn't consider this a children's book. it's kind of in the vein of old yeller - it references/pays homage to old yeller - but it's more of a naturalist take on following a wild animal around as it hunts, mates, etc. eckert dedicates the book to his friend, who he calls an outdoorsman, and it's that kind of nature book - extremely brutal, with little emotion, very red in tooth and claw and with this kind of viewpoint that everyone's hunting, animals, men, and that's just how it is.
where it is unrealistic is in the adventures of the titular crossbreed (half housecat, half bobcat). he literally travels down the mississippi like some feline huck finn and rides the rails like a hobo. like I said, the book is brutal. the cat is always getting injured, though the injuries don't seem to phase him for long and heal up fine with no lasting damage. but he goes through a lot, and witnesses even more - he gets shot at multiple times, chased by dogs, caught in a noose and used in a fighting ring, caught in a trap. he sees his companions get killed by a car, a snake, and gunfire. whenever he is frightened or moved, eckert talks about some weird noise he makes, and it's like this very masculine viewpoint on emotion, just let out some howl and then forget about your pain and get on with your life impassively.
the writing is a little stiff, for sure. eckert doesn't stint on talking about animals relieving themselves, mating, fighting, killing and eating other animals. he does refer to rabbits as rodents several times, which is incorrect and which I found kind of annoying in a book that otherwise was showing off natural knowledge. a big part of the book is the crossbreed's homing drive, and eckert gives the geography of towns and rivers and creeks as if we all grew up there (the book ranges from wisconsin, to minnesota, to missouri, arkansas, louisiana) which is also weird. he's good at describing natural features of landscapes.
the best part was the end where the crossbreed and a boy who saved him and lived with him for a few months as a kitten had the potential to reunite. it wasn't as expected, and I appreciated that. but yeah, the rest of it seemed overly formal, like natural history combined with an adventure story, and above all brutal. I didn't enjoy it very much.