| Titre : | Environmental correlates of Freckled Nightjar (Caprimulgus tristigma) activity in a seasonal, subtropical habitat |
| Auteurs : | Robert A. M. Ashdown, Auteur ; Andrew E. McKechnie, Auteur |
| Type de document : | Article |
| Dans : | Journal of Ornithology (149(4) OCT 2008) |
| Article en page(s) : | 615-619 |
| Langues: | Anglais |
| Résumé : | We examined environmental correlates of activity in the Freckled Nightjar (Caprimulgus tristigma), a nocturnal aerial insectivore that is resident year-round in the colder and drier parts of southern Africa. Specifically, we tested the prediction that air temperature (T(a)), in addition to light availability, is a significant correlate of Freckled Nightjar activity. We found that aerial insect density varied by over three orders of magnitude (from |



