. Oologia neerlandica : eggs of birds breeding in the Netherlands . h trees and on low stumps of willowsand alders); breeds in colonies. 3—4 (mostly 4, in exceptional cases more). April, May, June; eggs are sometimes alsofound even in July. about 28 days. NOZEMAN ) says that he has never seen any butwhnlly white eggs, which statement, in view ofthe number that he must have seen. 1 can onlyexplain by assuming that he alwavs took pigmentspots to be accessory spots caused by ncst-dirt orin other manner- ) To this circumstance, parlicularlv in respect of eggs of PI. leucorodia, attention wasdrawn
. Oologia neerlandica : eggs of birds breeding in the Netherlands . h trees and on low stumps of willowsand alders); breeds in colonies. 3—4 (mostly 4, in exceptional cases more). April, May, June; eggs are sometimes alsofound even in July. about 28 days. NOZEMAN ) says that he has never seen any butwhnlly white eggs, which statement, in view ofthe number that he must have seen. 1 can onlyexplain by assuming that he alwavs took pigmentspots to be accessory spots caused by ncst-dirt orin other manner- ) To this circumstance, parlicularlv in respect of eggs of PI. leucorodia, attention wasdrawn for the first time, and rightiv Ithink, hv von PETENVl. (See his „Ornithologische Frag-mcnle, published at Ocra-Unterinhaus, \W5, p. 33li) refers (1. c. page 439) to similar poresas occurring rather often in eggs of llic Ardeidae. To me, however, they appear to be mucliless pronounced in eggs of the Ardcidac than in Icucorodin-cggs, ^) Ned. Vogelen, II, p- 171. J i \ %» 123 >■ . ^ << ■^.itt 124 tu < O ►J< <6. •I ■ , 11 * :- * a -aouoo F7SS;,\,V 125 < o < |*1^. :il^■i•.^!!JJM^^■^l^^n~.^•■^i>■^ XXXVI. Family RALLIDAE. Family RALLIDAE. Crex crex (L.) — Corn-Crake. (Plates 126-127, fig. a-g).(Snouckaert: Avifauna Nccrlandica, p. 87, No. 203). 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:Remark: brownish yellow, sometimes tinted greenish. red brown; underlying spots show through violet larger spots generally run in a longitudinal direction. X 26 millimetres. gram slightly less finely granulated than in Rallusaquaticus. ovoidal. consists of vegetable materials. in a little hollow among long grass in grass-land; also sometimes in corn-fields. 7—9 (sometimes more; after-set: 5—7). end of June, July, August. about 21 days. See, for compar
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Keywords: ., bookauthorpeltlech, bookcentury1900, bookdecade1910, bookyear1911
