Category: Apodidae

Annahme von Nisthilfen durch den Mauersegler (Apus apus) in Berlin

Common Swift (Apus apus) Science Article 3 abstract We present results of the inspection of 1915 nest boxes for Common Swifts in Berlin in 2002. The aim of the studyis to determine factors influencing acceptance of artificial nest boxes. Two significant influences were thedistance of nest boxes from the original breeding grounds and the structure […]

Dusk and dawn ascend of the swift, Apus apus L.

Common Swift (Apus apus) Science Article 2 abstract Radar observations on bird movements over The Netherlands in June andJuly revealed spectacular nocturnal Swift concentrations over the IJsselmeerand to a lesser extent above other waterbodies in and around TheNetherlands at some kilometres from coastlines. The Swifts performcharacteristic dusk and dawn ascends up to altitudes over 1800 […]

The Winter Range of the Chimney Swift (Chaetura pelagica)

Chimney Swift (Chaetura pelagica) Science Article 1 abstract In identifying birds for cataloging, I have discovered that we have in the American Museum three Middle American specimens of the Chimney Swift, and as a contribution to our knowledge of the ‘Winter’ range of this species. FRANK M. CHAPMAN, Auk, Vol. 48 Download article download full […]

Foliage-gleaning by Chimney Swifts (Chaetura pelagica)

Chimney Swift (Chaetura pelagica) Science Article 2 abstract Apparent gleaning of insects from leaves has been reported in Chimney Swifts by Fischer (New York Mus. Sci. Serv. Bull., No. 336: 1, 1958) and in Short-tailed Swifts (C. brachyura) by Collins (Bull. Florida State Mus., 11: 257, 1968). William G. George, Auk, Vol. 88 Download article […]

Additive effects of ectoparasites over reproductive attempts in the long-lived alpine swift

Alpine Swift (Apus melba) Science Article 7 abstract Parasitism is a non-negligible cost of reproduction in wild organisms, and hosts are selected to partition resources optimally between current and future reproduction. While parents can compensate for the cost of parasitism by increasing their current reproductive investment, such change in resource allocation is expected to carry-over […]