Duration of Fertility in Willow Ptarmigan Hens after Separation from the Cock

✍ Scribed by Howard Parker

• Book ID: 124276465
• Publisher: JSTOR
• Year: 1981
• Weight: 351 KB
• Volume: 12
• Category: Article
• ISSN: 0030-5693
• DOI: 10.2307/3676075