Mourer-Chauviré, C.; Philippe, M.; Quinif, Y.; Chaline, J.; Debard, E.; Guérin, C.; Hugueney, M. (2003). "Position of the palaeontological site Aven I des Abîmes de La Fage, at Noailles (Corrèze, France), in the European Pleistocene chronology". Boreas. 32 (3): 521–531. Bibcode:2003Borea..32..521D. doi:10.1080/03009480310003405.
Rolando, Antonio; Laiolo, Paola (April 1997). "A comparative analysis of the diets of the chough Pyrrhocorax pyrrhocorax and the alpine chough Pyrrhocorax graculus coexisting in the Alps". Ibis. 139 (2): 388–395. doi:10.1111/j.1474-919X.1997.tb04639.x.
Rolando, Antonio; Caldoni, Riccardo; De Sanctis, Augusto; Laiolo, Paola (2001). "Vigilance and neighbour distance in foraging flocks of red-billed choughs, Pyrrhocorax pyrrhocorax". Journal of Zoology. 253 (2): 225–232. doi:10.1017/S095283690100019X.
Blanco, Guillermo; Tella, José Luis (August 1997). "Protective association and breeding advantages of choughs nesting in lesser kestrel colonies". Animal Behaviour. 54 (2): 335–342. doi:10.1006/anbe.1996.0465. hdl:10261/58091. PMID9268465. S2CID38852266.
Rolando, Antonio; Patterson, Ian James (July 1993). "Range and movements of the Alpine Chough Pyrrhocorax graculus in relation to human developments in the Italian Alps in summer". Journal of Ornithology. 134 (3): 338–344. Bibcode:1993JOrni.134..338R. doi:10.1007/BF01640430. S2CID21498755.
Blanco, Guillermo; Fargallo, Juan A.; Tella, José Luis; Cuevas; Jesús A. (February–March 1997). "Role of buildings as nest-sites in the range expansion and conservation of choughs Pyrrhocorax pyrrhocorax in Spain". Biological Conservation. 79 (2–3): 117–122. Bibcode:1997BCons..79..117B. doi:10.1016/S0006-3207(96)00118-8. hdl:10261/58104.
Blanco, Guillermo; Tella, José Luis (August 1997). "Protective association and breeding advantages of choughs nesting in lesser kestrel colonies". Animal Behaviour. 54 (2): 335–342. doi:10.1006/anbe.1996.0465. hdl:10261/58091. PMID9268465. S2CID38852266.
Blanco, Guillermo; Fargallo, Juan A.; Tella, José Luis; Cuevas; Jesús A. (February–March 1997). "Role of buildings as nest-sites in the range expansion and conservation of choughs Pyrrhocorax pyrrhocorax in Spain". Biological Conservation. 79 (2–3): 117–122. Bibcode:1997BCons..79..117B. doi:10.1016/S0006-3207(96)00118-8. hdl:10261/58104.
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Mourer-Chauviré, C.; Philippe, M.; Quinif, Y.; Chaline, J.; Debard, E.; Guérin, C.; Hugueney, M. (2003). "Position of the palaeontological site Aven I des Abîmes de La Fage, at Noailles (Corrèze, France), in the European Pleistocene chronology". Boreas. 32 (3): 521–531. Bibcode:2003Borea..32..521D. doi:10.1080/03009480310003405.
Rolando, Antonio; Patterson, Ian James (July 1993). "Range and movements of the Alpine Chough Pyrrhocorax graculus in relation to human developments in the Italian Alps in summer". Journal of Ornithology. 134 (3): 338–344. Bibcode:1993JOrni.134..338R. doi:10.1007/BF01640430. S2CID21498755.
Blanco, Guillermo; Fargallo, Juan A.; Tella, José Luis; Cuevas; Jesús A. (February–March 1997). "Role of buildings as nest-sites in the range expansion and conservation of choughs Pyrrhocorax pyrrhocorax in Spain". Biological Conservation. 79 (2–3): 117–122. Bibcode:1997BCons..79..117B. doi:10.1016/S0006-3207(96)00118-8. hdl:10261/58104.
Blanco, Guillermo; Tella, José Luis (August 1997). "Protective association and breeding advantages of choughs nesting in lesser kestrel colonies". Animal Behaviour. 54 (2): 335–342. doi:10.1006/anbe.1996.0465. hdl:10261/58091. PMID9268465. S2CID38852266.
Blanco, Guillermo; Tella, José Luis (August 1997). "Protective association and breeding advantages of choughs nesting in lesser kestrel colonies". Animal Behaviour. 54 (2): 335–342. doi:10.1006/anbe.1996.0465. hdl:10261/58091. PMID9268465. S2CID38852266.
Rolando, Antonio; Patterson, Ian James (July 1993). "Range and movements of the Alpine Chough Pyrrhocorax graculus in relation to human developments in the Italian Alps in summer". Journal of Ornithology. 134 (3): 338–344. Bibcode:1993JOrni.134..338R. doi:10.1007/BF01640430. S2CID21498755.