Weather conditions and prey abundance impact many birds, but the influence differs
between species and regions. I used 18-year data from Estonia, north-eastern Europe, in …

Habitat quality is an important but insufficiently understood concept in ecology and
conservation biology, due to geographic and temporal variation as well as interaction with …

A discussion of raptor management is initiated with the premise that management of wild
populations of birds of prey is advisable, feasible and may be mandatory at this time to …

Animal home‐ranges are expressions of the biology and ecology of a species, and their size
is often considered to be a proxy for habitat quality. Understanding the factors affecting …

Summary Gargett, V. 1978. Sibling aggression in the Black Eagle in the Matopos, Rhodesia.
Ostrich 49: 57-63. A two-egg clutch of the Black Eagle Aquila verreauxii was observed from …

There is very little confirmed information on the social organisation of breeding Lesser
Spotted Eagle populations, the turnover rate of adults, and their nest-site and partner fidelity …

Citizen science is increasingly contributing to ecology and conservation research, mostly by
the extensive collection of field data. Although webcams attract numerous observers, they …

This publication is based on the management plan for the Lesser Spotted Eagle Aquila
pomarina in 2003–2012. This bird is one of the most numerous eagles in Europe but still …

Summary Brown, LH, Gargett, V. & Steyn, P. 1977. Breeding success in some African Eagles
related to theories about sibling aggression and its effects. Ostrich 48: 65-71. Previous …

The Lesser Spotted Eagle belongs to a species with obligatory cainism, which means that in
the natural state it is rare that two young eagles fledge, although as a rule two chick's hatch …