Is there any way to predict the time when birds and insects will be able to understand the concept of glass, i.e. usually any vertical glass surface within a wall structure will not have a convenient sized hole to pass through?
And mammals larger than a squirrel will understand the concept of crossing a road, not necessarily traffic lights and zebra markings but just the general concept of vehicles hitting them?
Do we just maime a few and leave them to replicate?
Not to mention locks and doorhandles?