A member who I know of the french forum has shared some links to Youtube video reports on Beauval at early stage. I thought it would interest some Zoochatters (for those few who understand french or if you want to see some nice images of these old times) !
Here a link to a video of 1981, just after the opening, when it was just a bird park :
Another in 1992, three years after they started as a zoo :
And the last one in 1997 just before the opening of the tropical house for gorillas and manatees :

Here a link to a video of 1981, just after the opening, when it was just a bird park :
Another in 1992, three years after they started as a zoo :
And the last one in 1997 just before the opening of the tropical house for gorillas and manatees :