Ive searched everywhere in the midlands and eastern forests but cant find him.

Or her? Try going for a swim up Snake River from Nymph Lake and look for a clearing on the left hand side. What, as a wannabe Ranger, you're doing stealing the eggs of an endangered species is another question.

The Raptors only show after you take the Ranger Promotion Quest out (& then they start multiplying, every quest one more raptor).

They are in a small area north of the river from the nymphlake to the toad area (just 2 windings I believe before you get close to the tunnel to IN). If yu run in, you will have to turn right into a dead-end and there you will find an egg. If you kill the raptor you get a second egg, but never a third. So do not kill the raptor if you want more then 2 chars being rangers. When there are more raptors, INVISIBILITY & CHARM will ensure that you can get even a sixth egg without much damage (I had all six chars going through a ranger stage).

Hope you find it soon.