05-17-2017, 03:37 PM
Owl populations are cyclical, as their populations fluctuate to correspond to natural cycles of their prey.
https://academic.oup.com/biohorizons/art...n-two-Barn
http://onlinelibrary.wiley.com/doi/10.11...563.x/full
https://academic.oup.com/biohorizons/art...n-two-Barn
http://onlinelibrary.wiley.com/doi/10.11...563.x/full