Who grew up in the 60’s or 70’s and hasn’t seen one of these? We used to jump in the old Fury III (Dad was partial to Plymouths) and head for Iowa and Texas every year (not at the same time) where my grandparents lived. On the way, we would stop and eat at cafes (no fast food for us!). It seemed like every one of them had a dippy bird doing his thing, many times on a shelf high up enough to be seen throughout the eatery.
I guess they had some horribly toxic substance in them, hence their rarity today. But if you remember JFK, you probably remember the dippy bird being a very common sight.