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Spotted owlets, however, show only a slightly lower melatonin concentration at night with a slight increase in the early afternoon. Other owls such as the barn owl show little day-night variation. [ 13 ] [ 14 ] Seasonal changes in glandular activity have been associated with environmental factors such as temperature and humidity.
The outlines described in this article are lists, and come in several varieties. A sentence outline is a tool for composing a document, such as an essay, a paper, a book, or even an encyclopedia. It is a list used to organize the facts or points to be covered, and their order of presentation, by section.
Fledging stage of the northern mockingbird (Mimus polyglottos). Fledging is the stage in a flying animal's life between hatching or birth and becoming capable of flight. This term is most frequently applied to birds, but is also used for bats.
Wikipedia outlines are a hybrid of topic outlines (outlines made of terms) and sentence outlines (outlines made of sentences), and many outlines include elements of each. Many outlines provide descriptive annotations in their entries, to assist readers in topic identification and selection, to help them at a glance to understand the terms and ...
A Young Man Reading by Candlelight, Matthias Stom (ca. 1630). A night owl, evening person, or simply owl, is a person who tends or prefers to be active late at night and into the early morning, and to sleep and wake up later than is considered normal; night owls often work or engage in recreational activities late into the night (in some cases, until around dawn), and sleep until relatively ...
The erection of nest platforms for great grey owls was pioneered by Robert Nero in central Canada in the 1970s. Nesting may occur from March to May. Unlike, for example, osprey or white storks, the great grey owl does not predictably re-use nest sites over consecutive years. Four eggs are the usual clutch size. Eggs average 42.7 mm (1.68 in ...
Several types of owls are crepuscular—active during the twilight hours of dawn and dusk; one example is the pygmy owl (Glaucidium). A few owls are active during the day, also; examples are the burrowing owl (Speotyto cunicularia) and the short-eared owl (Asio flammeus). Much of the owls' hunting strategy depends on stealth and surprise.
Cucullia convexipennis, the brown-hooded owlet or brown-bordered cucullia, is a moth of the family Noctuidae.The species was first described by Augustus Radcliffe Grote and Coleman Townsend Robinson in 1868.