How big would a common Kestrels territory be?

Question

i live in the UK and have seen a few kestrels in the same area and wondered if they were invading each others territory.

Answer 1

Because it feeds on both insects and vertebrates, the Kestrel maintains fairly high population densities. It has a small breeding home range, from 1.75 to 2 square miles. Territory size has been estimated at 269 to 321 acres with much larger wintering home ranges.