乐生活American Birds Follow-up–Cold-door Owls [Psiloscops flammeolus Kaup, 1853]
When night falls and insect-eating birds rest during the day, when moths avoid the bat’s ultrasound and think they are safe, some silent shadows will come unconsciously, and these poor insects will eventually become the night snacks of others.
This is the American Horn Owl. In America, carved owls, warblers, burrowing owls and palm owls are the cold owls. The only species of American Horn Owl, a nocturnal owl that feeds mainly on insects, is 16cm long. The dark iris makes their eyes look like two black holes. It’s the only small owl with dark iris in the United States. It’s very easy to have other horned owls. Distinguish;
The invertebrates occupy almost all of the diet because of their insectivorous characteristics, so they have strong migration. They arrive at breeding grounds in the western mountains of the United States in late April every year at an altitude of 2000 – 3500 m, and make nests by using abandoned woodpeckers’tree holes.
Because it is too small and pure night travel, people used to think that the number of owls is very rare. However, with the deepening of research and the surge in birdwatching population, people found that they are actually not easy to see. It is likely that the number of owls in the United States is the largest, after the American eagle.
Nevertheless, it’s hard to see this kind of owl, or else it won’t be so far behind the 17th kind of owl I’ve seen in the United States – their call is a very low ho ho sound, which makes people feel very far away, but it’s very close, which really surprises me.
The picture was taken in a hill near Salt Lake City, Utah, at an altitude of about 2100 M. Seven of them were heard that night. However, only three of them were seen. Two or four palm owls were also photographed. So far, only one owl in the United States has not seen them.
@ Stephanie Hewish@ Pardalotus-punctatus
