Silent flightOwls have specialised wing feathers that enable them to fly almost silently. The leading edges of their primary feathers have a serrated structure, while their trailing edges are ...

There is several wildlife sounds heard during the evenings during the summer and year-round. Between the various insects, ...

Birds wintering farther south, closer to the equator, potentially have a faster rate of feather degradation due to an increase in UVR intensity, but may live in a more benignÐ site in other respects.