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What is PRUMOD about?

The document provides detailed criteria for aging Dunnocks (Järnsparv) based on plumage characteristics and iris color, distinguishing between 2cy and 3cy+ birds. It highlights the differences in feather structure, density, and wear patterns between juvenile and adult birds, emphasizing the importance of specific features like the contrast in wing moult and iris color. Overall, the aging process relies on a combination of pattern, structure, and color observations to accurately identify the age of the birds

Author

osperpet

Language

EN