Birds crash into glass because they’re dumb, or because they’re drunk from eating fermented berries.
Facts
The problem does not lie with the birds, even if they were drunk. The problem lies with the glass.
Birds do not understand what glass is because it’s not natural. It only exists in their environment because humans have placed it there.
They crash into clear glass because they cannot imagine an invisible barrier being in their way.
They crash into reflective glass because it creates an illusion.
Unfortunately, birds cannot differentiate between transparent and passable, or between between reflection and reality
That’s completely unnecessary in nature.
