Fugler
Planting trees as windbreaks on farmland can sharply cut populations of grassland and wetland birds, according to new research in central Japan.
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Researchers have tracked the eye movements of pigeons in flight for the first time. The birds fix their gaze after takeoff rather than scanning their surroundings.
A 60-year study of over 80,000 great tits in Oxford's Wytham Woods shows that cold snaps and heavy rain reduce nestling body mass and survival chances. Birds breeding earlier in the season appear better shielded from these effects. Moderate warm spells, however, can boost chick growth by enhancing food availability.
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I årets fugletelling nådde svarttrosten en rekordhøyde på 52 364 observert individer, ifølge BirdLife Sverige. Lappmeisen topper listen som vanlig, mens antall deltakere steg til 19 000 på grunn av vinterværet. Tellingen fant sted i helgen og belyser endringer i fuglebestander.