My cats are lunatics.
They do love to sit and gaze out the cat flap for hours on end.
I have no idea what they may be looking for, I have no idea if they ever find it, but it always make me laugh when I see them.
It always start with both of them having a look.....

Then Scooter normally pushes forward to get a closer look at things and get an all round assessment of what is out there....

After a while, Vinnie will suddenly take matters into his own hands and make a mad dash for it, who cares if it is raining?!!!!

Once Vinnie escapes, Scooter will often carry on just sitting there, poking his head out occasionally, just waiting.
I love my cats, there are a never ending source of entertainment.

Lol many years ago when i had 2 cats they use to do the same *duke * the youngest would always be the brave one and *Suzy* would eventually wander out then get chased back in by other neighbouring cats
Bless them 