Sounds like your kitties are pretty restless and just active..
also, it seems like they want some attention.
What about providing your furbabies with some toys?
i would encourage using INTERACTIVE toys to play with your kitties, as that creates a great opportunity to bond and to encourage your kitties to exert a lot of energy during these play sessions. Some samples of interactive toys are in the pix below.
Wow, did you mention outdoors? i hope your kitties are wearing collars with your contact no. and name on the tags. Better still, microchip your babies. You never know.
If you decide to keep your kitties indoor, perhaps a tree in the house would be great. Hopefully you would consider this option.
Also, kitties love scratch pads. You can buy these in different forms, even in the form of sisal ropes.
Anyway, don't know how much i have helped (or not helped at all?)
Take care of you and take care of your furbaby!