. Oologia neerlandica : eggs of birds breeding in the Netherlands . Lanius collurio L. Family LANIIDAE. Lanius collurio L. — Redbacked Shrike. (Plate 10, fig. a-f).(Snouckaert: Avifauna Neerlandica, p. 34, No. 78). Colour of surface of shell; Colour of spots: Average dimensions:Average weight of shell:Texture of shell:Shape: Nest: Site of nest: Number of eggs:Breeding season:Duration of incubation: 3, 4, 5 varying from whitish to sea green (type I);varying from light cream colour to red-dish (type II). olive green; yellowish; reddish brown, invarious variegations; blood red (occurringexclusive
. Oologia neerlandica : eggs of birds breeding in the Netherlands . Lanius collurio L. Family LANIIDAE. Lanius collurio L. — Redbacked Shrike. (Plate 10, fig. a-f).(Snouckaert: Avifauna Neerlandica, p. 34, No. 78). Colour of surface of shell; Colour of spots: Average dimensions:Average weight of shell:Texture of shell:Shape: Nest: Site of nest: Number of eggs:Breeding season:Duration of incubation: 3, 4, 5 varying from whitish to sea green (type I);varying from light cream colour to red-dish (type II). olive green; yellowish; reddish brown, invarious variegations; blood red (occurringexclusively in the more or less erythristicobjects of type II); the spots lying deeperare of a grey appearance in all the eggs. 22 X millimetres. gram. fine. varying between short-oval, obtuse and moreelongated. is built of vegetable material and is linedwith hair and wool. especially in hawthorn and blackthorn shrubs;in hedges; in young conifers; up to aheight of about 2 metres. 5—7 (after-set: 4—5). second half of May to middle of June. about 14 days.
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidoologianeerlandi11pelt
