 ... times the whole of their subsistence. Here, then, if my data be correct, there is the enormous quantity of 468,000 Ibs., or 209 tons, of worms, insects, and their larvae, destroyed by the rooks of a single rookery in one year.  Magazine of Natural History - Стр. 142редактор(ы): - 1833Полный просмотр - Подробнее о книге
 | 1833 - Страниц: 468
...larvae destroyed by the birds of a single rookery; and to every one who knows how very destrustive to vegetation are the larvae of the tribes of insects...Suffolk, and in some of the southern counties, the larvai of the cockchafer are so exceedingly abundant that the crops of corn are almost destroyed by... | |
 | 1833 - Страниц: 780
...Ibs. or 209 tons of worms, insects, and their larvse, destroyed by the rooks of a single rookery : to every one who knows how very destructive to vegetation...devastation which rooks are the means of preventing." (TG of Clitheroe, Lancashire, in Mag. Nat. Hist., vol. vi. p. 142.) Proofs of the efforts of the rooks... | |
 | 1833 - Страниц: 776
...Ibs. or 209 tons of worms, insects, and their larvae, destroyed by the rooks of a single rookery : to every one who knows how very destructive to vegetation...devastation which rooks are the means of preventing." (TG of Clitheroe, Lancashire, in Mag. Nat. Hist., vol. vi. p. 142.) Proofs of the efforts of the rooks... | |
 | 1834 - Страниц: 444
...destroyed by the rooks of a single rookery. To every one who knows how very destructive to vegetation are the tribes of insects, as well as worms, fed upon...devastation which rooks are the means of preventing. (Quoted in the Gardeners' Magazine). — Sent by DIE PARABLE OP THE TALENTS. A PARABLE is a short tale... | |
 | john murray - 1845 - Страниц: 722
...tons, of worms, insects, and their larvae, destroyed by the rooks of a single rookery in one year. To every one who knows how very destructive to vegetation...devastation which rooks are the means of preventing." y Wagtails and robins are also very fond of the Wireworm, and probably sparrows; blackbirds and thrushes... | |
 | Michigan State Agricultural Society - 1859 - Страниц: 600
...single rookery in one year. To every one who knows how very destructive to vegetation are the larra of insects as well as worms fed upon by rooks, some slight idea may be formed of &he devastation which rooks are the means of preventing." These facts regarding the destruction of... | |
 | John Curtis - 1860 - Страниц: 602
...tons, of worms, insects, and their larvae, destroyed by the rooks of a single rookery in one year. To every one who knows how very destructive to vegetation...devastation which rooks are the means of preventing."* Wagtails and robins are also very fond of the wire worm, and probably sparrows; blackbirds and the... | |
 | The London Quarterly VOL.XXVII October 1866 and January,1867 - 1867 - Страниц: 554
...year! By every one who knows how very destructive to vegetation are the larva? of the insect tribes, as well as worms, fed upon by rooks, some slight idea...formed of the devastation which rooks are the means of preventing."—P. 196. Almost all the tribes of birds, from the rook to the tomtit, prey upon insects,... | |
 | 1868 - Страниц: 624
...tons of worms, insects, and their larvae destroyed by the rooks of a single rookery in one year. By every one who knows how very destructive to vegetation...slight idea may be formed of the devastation which rookg are the means of preventing," j . . •• • Curtis' 'Farm Insects,' p. 178. i Ibid. J Ibid,... | |
 | William Gifford, Sir John Taylor Coleridge, John Gibson Lockhart, Whitwell Elwin, William Macpherson, William Smith, John Murray, George Walter Prothero - 1868 - Страниц: 608
...single rookery in one year. By every one who knows how very destructive to vegetation are the larvte of the tribes of insects, as well as worms, fed upon...devastation which rooks are the means of preventing.' * The following is Mr. Groom Napier's list of food found in rooks' crops throughout the year. ' Jan.,... | |
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