Did you look for a nest or another bird in the original shrub?
i didn’t see anything in the bush at first glance. i tried to see if it was leading me somewhere, but it didn’t seem like it. i didn’t want to stress them out by approaching them too quickly or digging thru the bush.
they did seem very small, so it’s possible they don’t know how to feed themself. it’s not too far, so i can try checking on them sometime soon. i don’t want to invade their home, tho.
try telling that to every manager i’ve ever had.