1. Feather micro organisms and uropygial antimicrobial defences in a colonial passerine bird / Anders P. Møller, Gabor A. Czirjak and Philipp Heeb

2. Horizontal transmission and reproductive rates hen of fleas in great tit nests / Philipp Hebb [y otros tres]

3. The immunological function of allosuckling / Alexandre Roulin, Philipp Heeb

4. Intraclutch egg mass variation and hatching asynchrony in the Jackdaw Corvus monedula / Philipp Heeb

5. Mixed blessings for middle aged mothers / Philipp Heeb, Martin W. G. Brinhof

6. Multimodal begging signals reflect independent indices of nestling condition in european starlings / Staffan Jacob, Guillaume Rieucau, Philipp Heeb

7. Nestling detectability affects parental feeding preferences in a cavity nesting bird / Philipp Heeb, Tanja Shwander & Sacha Faoro

8. Ontogeny of sexual dimorphism in the Long tailed Manakin Chiroxiphia linearis : long maturation of display trait morphology / José Edgardo Arévalo, Philipp Heeb

9. Pair copulation frequency correlates with female reproductive performance in Tree Sparrows Passer montanus / Philipp Heeb

10. Phenotype dependent selection of juvenile urban Feral Pigeons Columba livia / Daniel Haag Wackernagel, Philipp Heeb & Andreas Leiss

11. Social and sexual behaviours aid transmission of bacteria in birds / Subhash Kulkarni, Philipp Heeb

12. Social foraging and the evolution of white plumage / Guy Beauchamp, Philipp Heeb