Neighborhood Chipmunks

I haven't seen a lot of chipmunks in our yard. We have lots of black and grey squirrels - and some smaller, aggressive red ones.

But my neighbor Mary has seen chipmunks in her yard.

These photos were taken by her daughter Kim...

Is this one an adult?

And here, sitting on the top left patio stone are two more... The same family?

I have no idea whether the paler one is younger or simply a different color...

They may have been lured by nuts - a good photography strategy!