Winter roosts of Yellowhammers Emberiza citrinella in Northern Iberia:   population dynamics and biometry / 
Arizaga, J., Alonso, D., Mendiburu, A., Vilches, A. 
 --   Institut Català d'Ornitologia   2007 
<br/><br/> Restringido 
<br/><br/>Arizaga, J., Alonso, D., Mendiburu, A., Vilches, A. 2007. Winter roosts of Yellowhammers Emberiza citrinella in Northern Iberia: population dynamics and biometry. Rev. Catalana Ornitol. 23: 18-26. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>biometrics<br/>Emberiza citrinella<br/>Northern Iberia<br/>population dynamics<br/>sex and age ratios<br/>winter roosts<br/>Yellowhammer
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Artículo científico