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Seasonal changes in male and female bill knob size in the mute swan Cygnus olor

✍ Scribed by Nicholas Horrocks; Christopher Perrins; Anne Charmantier

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

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✍ Wood, Kevin A.; Stillman, Richard A.; Coombs, Terry; Mcdonald, Claire; Daunt, Fr 📂 Article 📅 2013 🏛 Taylor and Francis Group 🌐 English ⚖ 234 KB

Regional and seasonal variations in lead

✍ J. Sears 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 907 KB