I think ‘butterfly blink’ is popularly used to describe ‘very long fur-ly thick false eyelashes’ (plenty on sale online). A phrase that AI language model has not covered yet. In nature :-

==Butterflies (like all insects) never close their eyes. They don’t have eyelids! – They can’t blink!

How do flies clean their eyes?Flies do not have eyelids; they have to rub their eyes with their feet to keep them clean. Flies taste, smell, and feel with the hairs that cover their bodies. Flies actually taste what they walk on. Flies can walk on smooth surfaces using sticky soft pads on their feet that act like glue.

==NASA Astrophysics Data System NASA/ADS: https://ui.adsabs.harvard.edu/abs/2013APS..DFDL28005A/abstract –setae in front of the eye, diverts airflow to reduce deposition of particles. (setae - equivalent of eyelashes in mammals.)

==eyebrows + eyelashes serve two main functions: first, communication through facial expression, and second, prevention of sweat, water, and other debris from falling down into the eye socket. It is common for people to modify their eyebrows by means of hair removal and makeup. [wikipedia]

– Insects spend time cleaning their eyes by “brushing them with a front leg”, and can have eye cleaning reflexes like human blinking when anything gets on or near their eyes. [cornell.edu]

?Why did AI [Google BARD] say butterflies blink their eyes?
Very likely. it’s an English problem. The way butterflies fly by ‘flipping’ their wings –is also described by the word ‘blinking’, and AI’s language model related ‘blink’ to usual sense of ‘eye blink’, so AI generated a response that read like butterflies blink eyes [instead of wings].

So, AI, though useful for some, still has a fair way to go before it can become a source of reliable information. Today’s AI generated materials need verification!