Certainly in the hundreds of thousands, or more.
the population of owls decreases
america
the are a great many countries but there are a number of breeds in the United Kingdom
No owl in North America eats adult ducks. Great Horned Owls may attack ducks in flight but this appears territorial. Owls can attack and eat ducklings.
both will experience population drops. if there is no grass, there will be less insects, less mice to eat the insects, and less owls to eat the mice.
5,000
Ear Tufts
Snowy owls keep the Lemming population under control.
In the winter Burrowing Owls go to the South of America.
the population of owls decreases
the population of owls decreases. (Apex)
There will be more population of owls and the grass level will decrease.
america
they live in nests in nirth america
populations
populations
Barn owls do not tend to migrate. Some Barn Owls in America,though, sometimes migrate to the more Southern states. Please add more info if you know anything about this topic, as it is very unclear.