Experimental evidence for the role of calcium in eggshell pigmentation pattern and breeding performance in Blue Tits Cyanistes caeruleus

1. García-Navas, V.
2. Sanz, J.J.
3. Merino, S.
4. Martínez-de la Puente, J.
5. Lobato, E.
6. del Cerro, S.
7. Rivero, J.
8. de Castañeda, R.R.
9. Moreno, J.