The Osprey 2 is a 2 place side by side sea plane featuring wood construction and was created by the same designer (George Pereira) of the GP-4 (see previous Aircraft of the month article)
This aircraft first flew in 1973 with over 500 examples built
https://en.wikipedia.org/wiki/Osprey_Osprey_2
They have one on display at the EAA museum in Oshkosh Wi, the EAA web site has sport aviation articles going back to 1970.
https://www.eaa.org/eaa/aircraft-building/kits-and-plans/m—q/periera-osprey-i-and-ii
Plans and Parts are still available for anyone looking to build one at:
https://www.ospreyaircraft.com/osprey.htm
While i was not able to find any RC aircraft of the Osprey, there are quite a few that have a bit of a resemblance on Outerzone
Laddie Mikulasko Designer of all kinds of RC aircraft with several Seaplane options has the Laker, a 70″ model from 1979
https://outerzone.co.uk/plan_details.asp?ID=7402

Ken Willard another well known RC aircraft designer has a few options as well
Likely best known for the Seamaster 40 & 120, ACE RC produced kits from the late 80′ and had ARF options as well:
Seamaster 40: https://outerzone.co.uk/plan_details.asp?ID=10212
Seamaster 120: https://outerzone.co.uk/plan_details.asp?ID=10817
I won a Seamaster 40 ARF at an auction back in the mid 2000’s not a bad performer but a higher power motor like a 60 or a modern electric setup is really needed for best performance.

As a side note the Anderson Kingfisher is also a similar homebuilt to the Osprey however not as many have been completed. I did a article on the Kingfisher in march 2020