Fenton Bird on a Nest?

Found this beauty at a local antique store. It was priced as Fenton and has what appears to be a Fenton maker's mark on the bottom of the nest but I could not find any similar items to verify its authenticity. Can anyone identify this as true Fenton art glass and perhaps know a date and value range? Any information will greatly be appreciated, as I am new to art glass collecting and hope this is my first piece of Fenton! Thanks!