HELLEBREKERS WPJ (1974) Oölogische nidologische and announcements in 1973 (and earlier): Leucistic eggs of Lesser Whitethroat Sylvia Sylvia borin Garden Warbler Sylvia borin. LIMOSA 47 (1): 62-62.

Leucistic eggs of Lesser Whitethroat Sylvia Sylvia borin Garden Warbler Sylvia borin Lesser Whitethroat Sylvia curruca Garden Warbler Sylvia borin

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