Carotenoid-based plumage colouration is associated with blood parasite richness and stress protein levels in blue tits (Cyanistes caeruleus)

1. del Cerro, S.
2. Merino, S.
3. Martínez-de la Puente, J.
4. Lobato, E.
5. Ruiz-de-Castañeda, R.
6. Rivero-de Aguilar, J.
7. Martínez, J.
8. Morales, J.
9. Tomás, G.
10. Moreno, J.