"Oologia Neerlandica": Eggs of Birds Breeding in the Netherlands, Volume 1

13 days aberration Acrocephalus after-set Average dimensions Average weight Avifauna Neerlandica birds blue bluish green Breeding season brownish built of vegetable bushes character close cloudy Colour of spots Colour of surface consists of vegetable covered darker dull Duration of incubation eggshell exception Family feathers frequently FRINGILLIDAE gives gram greenish grey appearance greyish ground colour holes hollow horsehair JOHN CRERAR LIBRARY July layer less light lime lined with hair lying deeper markings May-June mentioned Metres millimetres Motacilla namely nature nest Number of eggs oblong ovoidal occur oologically palustris pigment plants Plate preference rarely reddish brown Remarks resemblance respect rule shades Shape short shrubs similar slightly Snouckaert sometimes specially characterized species speckles surface of shell Sylvia SYLVIIDAE Texture of shell tint trees TURDIDAE Turdus usually various varying vegetable materials violet grey walls weight of shell wool yellow yellowish