Birdsong can signal the start of spring before the leaves bud and the flowers bloom. Every place has a unique sound, which ...

The ears, which are hidden under the feathers on the sides of the head, are slightly offset, which allow the owl’s brain to ...

The great horned owl is the most common owl of the Americas, easily recognizable because of the feather tufts on its head. These “plumicorns” resemble horns or, to some, catlike ears.

Volunteer surveyors go out with CD players and a 13-minute recording of owl sounds to play at specific stops two kilometres apart along a route. Stops have to be far enough apart to avoid double ...