. Oologia neerlandica : eggs of birds breeding in the Netherlands . hrubs;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. Explanation of 2: variations of type 6: „ „ „ II. IV. Family STURNIDAE. Family vulgaris L. — Starling. (Plate 11, fig. a—c).(Snouckaert: Avifauna Neerlandica, p. 10, No. 10). Colour of surface of shell; Average dimensions:Average weight of shell;Texture of shell:Shape:Nest: Site of nest: Number of eggs:Breeding season:Duration of incubation: light blue
. Oologia neerlandica : eggs of birds breeding in the Netherlands . hrubs;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. Explanation of 2: variations of type 6: „ „ „ II. IV. Family STURNIDAE. Family vulgaris L. — Starling. (Plate 11, fig. a—c).(Snouckaert: Avifauna Neerlandica, p. 10, No. 10). Colour of surface of shell; Average dimensions:Average weight of shell;Texture of shell:Shape:Nest: Site of nest: Number of eggs:Breeding season:Duration of incubation: light blue, slightly greenish (yolk showingthrough); the quantity of oocyan is some-times so small that the colour of the shellappears to be white. X millimetres. gram. clearly visible pores; furrowed lengthways. oblong ovoidal or short and bellied. consists of vegetable material, hair andfeathers. in hollow trees; under roof-tiles; in holesin walls. 5-6 (after-set: 4—5). middle of April — beginning of July. about 14 days. Fam. Sturnus vulgaris L. V. Family FRINGILLIDAE. Family FRINGILLIDAE.(Plates 12—26). I divide this family oologically into:I. CANNABiNA-group, with: cannabina, spinas and COELEBS-group, with: coelebs, pyrrhula and chloris. III. COCCOTHRAUSTES. IV. EMBERiZA-group, to be divided as follows: a. citrinella. b. schoeniclus, hortulana. c. calandra. V. PASSER-group, with:domestica and montana. The Coelebs- and Cannabina-groups are closely allied to oneanother by chloris. As regards the colour of the shell (percentage of oocyan) coccothraus-tes could be annexed quite well to the Coelebs-group: moreover, atype exists the markings of which bear the character of the wellknown blotches with blurred edges of coelebs, and I am surprised to FRINGILLIDAE. find no attention drawn to this resemblance anywhere in oologicalliterature; in texture of shell it is more independent; it has decidedlyno correspondence with the textur
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