Breeding
provided by World Register of Marine Species
Overproduction seem to occur commonly in Sandwich terns and the investment in a surplus egg serves mainly as an insurance mechanism.
Stienen, E.W.M.; Brenninkmeijer, A. (2006). Effect of brood size and hatching sequence on prefledging mortality of Sandwich terns: why lay two eggs?. J. Ornithol. 147(4): 520-530
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
- bibliographic citation
- Urban, E. K.; Fry, C. H.; Keith, S. (1986). The Birds of Africa, Volume II. <em>Academic Press, London.</em> Stienen, E.W.M.; Brenninkmeijer, A. (2006). Effect of brood size and hatching sequence on prefledging mortality of Sandwich terns: why lay two eggs?. J. Ornithol. 147(4): 520-530
- contributor
- Annelies Goffin [email]
Description
provided by World Register of Marine Species
Length: 36-46 cm. Plumage: rump white, other wise very pale grey above, with black crown and crest in breeding bird, white forehead and white speckling on forecrown in non-breeding bird; white hindneck collar; white below tinged pink in breeding dress. Immature forehead brownish, mottled upperparts and dark grey tail. Bare parts: iris dark brown; bill black with yellowish white tip (diagnostic); feet and legs black. Habitat: seashores and estuaries. Palearctic migrant. <389><391><393>
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
- bibliographic citation
- Urban, E. K.; Fry, C. H.; Keith, S. (1986). The Birds of Africa, Volume II. <em>Academic Press, London.</em> Stienen, E.W.M.; Brenninkmeijer, A. (2006). Effect of brood size and hatching sequence on prefledging mortality of Sandwich terns: why lay two eggs?. J. Ornithol. 147(4): 520-530
- contributor
- Lorna Depew [email]
