1. Dept of Biological Sciences; Univ. of Idaho; Moscow ID USA
2. Edward Grey Inst. of Field Ornithology, Dept of Zoology; Univ. of Oxford; Oxford UK
3. Dept of Collective Behaviour; Max Planck Inst. for Ornithology; Konstanz Germany
4. Dept of Biology; Univ. of Konstanz; Konstanz Germany
5. Fynbos Node, South African Environmental Observation Network; Cape Town South Africa
6. National Socio-Environmental Synthesis Center (SESYNC); Annapolis MD USA