Exchange of vocalization in the peregrine falcon Falco peregrinus(12.6MB, 00:01:06)Shot Date: 2002/03/04 Shot Location: Showa, Kanazawa, Ishikawa Pref. Japan | ||
| species Falco peregrinus Key Words | ||
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Animalia >Chordata >Aves >Ciconiiformes >Falconidae >Falco >or Animalia >Chordata >Aves >Falconiformes >Falconidae >Falco >
Before egg laying, a mating pair of the peregrine falcons Falco peregrinus nuzzle their heads against and vocalize to each other. This behavior probably is related to nest-site selection as it is most frequently observed at the nest site in the breeding ground.
This pair nested on a terrace roof on the 17th floor of a building in Kanazawa City. In the year 2000, when they first nested, they failed to raise any fledgling because the eggs rolled around over the roof. Next year, with cooperation of the building community, we put a gravel layer over the roof (gravel size 6-9 mm). The falcon pair successfully reared three fledglings, which is the first case in Japan that the peregrine falcons successfully fledged young in cities with many high buildings. The pair fledged young in 2002 and 2003 as well. Human assistance in establishment of favorable nesting environments appears crucial in successful reproduction of the peregrine falcons in urban environments.¡Êtranslated by Asoh¡Ë
(Data No.momo040115fp02b)
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