Exempel på perching

• These observations provided also an estimate of the time individuals spent perching, foraging and chasing intruders.

• The species are ordered by decreasing average perching height.

• It is territorial and known for its constant calls while perching, which help territory owners defend their ground against conspecifics and other hummingbird species.

• Do perching structures elevate seed rain and seedling establishment in abandoned tropical pasture?

• These data suggest that enhanced seed rain by attraction of perching animals, demonstrated in a companion study, influenced regeneration patterns.

• The estimated proportion of time spent foraging, perching, calling and chasing was 31.7%, 51.7%, 14.2% and 2.5% respectively.

• Do bird perching structures elevate seed rain and seedling establishment in abandoned tropical pasture?

• Traps were protected from perching birds by inserting nails around the frame.

• Do perching structures elevate seed rain and seedling establishment in abandoned tropical pastures?

• To do this, we simply estimated the proportion of the 5-min periods that females spent engaged in three mutually exclusive behaviours: flying, perching and ovipositing.

• Axis 1 mostly represents food substrate and foraging technique variation, while axis 2 arranges species across a gradient of increasing perching height and perching site size.

• Raptors were seen soaring above the roost, perching on trees close to roosting animals, chasing the bats on the wing and diving into the roosting trees.

• In addition, we estimated the size of 18 territories, in situations of high and low resource density, by determining the perching sites and foraging area of each individual.

• It is, therefore, slightly odd to feel the mantle of responsibility, even if it is only diminished responsibility, perching itself rather warily on my shoulders at the present time.

• These birds have very short legs and never settle voluntarily on the ground, perching instead only on vertical surfaces.