Fun read and some great pictures, thanks for the gift Grandpa! However me as I future biologists noticed several major flaws and yes I double-checked the facts as I know this book is older than me. Here's to name a few
- The book lumped the Western and Eastern Screech-Owl into one species, Otus asio, the American Screech-Owl. However the Western Screech obtained full species status in 1982, a good eleven years before this book was published. - His description of Red-tailed Hawks was just hurtful. He said that there were different forms from eastern and western US. Form is a synonym to a color morph. Theoretically he was referring to subspecies as morphs and not subspecies. - In the Accipiter section, he said "an adult Cooper's feeding its young" however the bird in the photo still had white underparts with brown streaking. So this "adult" in the photo was actually a juvenile/immature, between the ages 2-10 months old and therefore extremely unlikely to be the parent to the young.
But despite these flaws and vague oversimplifications of id marks, the book was still fun and I've learned a bit more about Old World Raptors. I definitely had a good time reading this.