Assertion: great horned owl's nest | /r/HasProperty | big horny finds
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text: Well, they discovered numerous owl facts: that the great horned owl's home territory averages just under six square miles; that, however, the raptor's winter range encompasses only a portion of its home range; that the big bird is essentially nonmigratory; that the horned owl can and does hunt both day and night; that it's something of a bully who lords it over all other raptors in its territory; that it nests earlier than any other bird in North America; that great homed owls don't build their own nests, but appropriate those built the previous season by other large birds, notably hawks and crows; that those nests which the big horny finds but doesn't adopt, it often destroys; that great homed owls prey on other raptors, both young and adults, especially at night when the day-hunters are snoozing; that horned owls play a major role in limiting crow populations; that, conversely, swarms of crows can pose a serious threat to nesting great horned owls and their chicks; that, in the Craigheads' study area, the typical mated pair of horned owls produced an average of three eggs but only 1.1 surviving chicks per year; that horned owlets leave their parents' territory to establish their own as soon as they're able to fend for themselves; and so on.