Motacilla


Also found in: Dictionary, Thesaurus, Wikipedia.
Related to Motacilla: Pied wagtail, wagtail, White Wagtail

Motacilla

 

a genus of birds of the family Motacillidae, order Passeres. The body is 16.5–18 cm long, and the bird has a long tail that constantly wags up and down. The coloring is white or yellow, combined with gray and black. A total of 11 species, several of which are migratory, are encountered in Europe, Asia, and Africa. There are five species in the USSR: the white wagtail (M. alba), the gray wagtail (M. cinérea), the yellow wagtail (M. flava), M. lutea, and the yellow-headed wagtail (M. citreola).

Birds of this genus inhabit damp meadows and swamps, areas near streams, and the lower and higher elevations of mountains. The white wagtail, which is often found near human dwellings, frequently nests in buildings, while other species make their nests on the ground. There are four to six eggs in a clutch. The brooding period is 12–15 days. Members of the genus feed on insects and other small invertebrates. Two related genera, Tmeto-thylacus and Macronyx, which has nine species, occur in the southern half of Africa.

References in periodicals archive ?
Louisiana Waterthrushes (Seiurus motacilla) and habitat assessments as cost-effective indicators of instream biotic integrity.
7.7 42.2 57.0 A Coracias abyssinica 542 114 264.2 357.0 A Cursorius temminckii 3 68.5 186.8 252.4 A Elanus caeruleus 3 240 438.6 592.8 A Eupodotus savilei 78 615 832.6 1125.1 A Falco naumanni 422 152.5 322.1 435.3 P Halcyon senegalensis 56 56.9 164.6 222.4 A Lamprotornis caudatus 74 121 275.1 371.8 A Lamprotornis chalybaeus 19 100 241.7 326.6 A Lanius meridionalis 2 65.5 181.2 244.8 A Lanius senator 269 31.9 111.0 150.0 P Leptoptilos crumeniferus 2 6325 4071.1 5501.5 A Macronyx croceus 47.6 145.8 197.0 A Merops albicollis 143 24.2 92.0 124.3 A Milvus migrans 11 704 912.8 1233.5 P Mirafra cantillans 655 18.7 77.1 104.3 A Motacilla flava 5 17.6 74.0 100.0 P Myrmecocichla aethiops 7 56.6 164.0 221.6 A Neotis denhami 1 4120 3040.4 4108.7 A Oenanthe oenanthe 23.2 89.3 120.7 P Oenanthe sp.
Luscinia svecica, Lymnocryptes minimus, Melanocorypha bimaculata, Melanocorypha calandra, Monticola saxatilis, Monticola solitarius, Motacilla citreola, Muscicapa striata, Netta rufina, Numenius arquata, Parus lugubris, Pernis apivorus, Phylloscopus collybita, Porzana parva, Porzana porzana, Porzana pusilla, Philomachus pugnax, Prunella collaris, Prunella modularis, Pyrrhula pyrrhula, Recurvirostra avosetta, Sterna albifrons, Streptopelia senegalensis, Serinus pusillus, Sylvia atricapilla, Sylvia hortensis, Tachybaptus ruficollis, Tichodroma muraria, Trochiloides nitidus, Tyto alba, and Vanellus spinosus.
Correspondingly, the least observed bird species during 2008 to 2009 included Anhinga melanogaste, Circus aeruginosus, Accipiter badius, Aquila nipalensis, Falco tinnunculus, Hydrophasianus chirurgus, Recurvirostra avosetta, Charadrius alexandrinus, Calidris minuta, Tringa stagnatilis, Tringa nebularia, Tringa glareola, Sterna acuticauda, Psittacula eupatria, Eudynamys scolopaceus, Athene brama, Alcedo atthis, Dinopium benghalense, Dendrocopos assimilis, Calandrella brachydactyla, Calandrella raytal, Anthus rufulus, Motacilla cinerea, Pycnonotus leucogenys, Phoenicurus ochruros, Saxicola torquatu, Orthotomus sutorius, Sylvia curruca, Cinnyris asiaticus, Oriolus oriolus, Lanius schach and Dendrocitta vagabunda two individuals in each species, respectively (Ali et al., 2011).
The white wagtail (Motacilla alba) is a more common breeding species than the horned lark and is absent only from the northernmost region of the delta.
Food, flocking and territorial behavior of the pied wagtail (Motacilla alba yarrelli Gould) in winter.
Always a creative scholar, "he used the degree of distinctiveness of closely related sympatric species as the basic measure of whether to recognize allopatric populations as species or subspecies" (Bock 1994)--for example, the sibling species of Pericrocotus (Mayr 1940), the Australian continental complex of Neositta species (Mayr 1950), and the highly variable Eurasian Motacilla flava (Mayr 1956).
For example, Motacilla alba was found nesting on both study sites only in relation to human dwellings, and Calidris acuminata appeared to nest only within a small portion of the interior site.
Direct support for the prediction has been found for other birds (Parus major: Krebs et al., 1977; Motacilla sp.: Davies, 1977) and a variety of mammals including marten, Martes americana (Thompson and Colgan, 1990), otters, Lutra lutra (Watt, 1995), and rodents, Kerodon rupestris (Lacher et al., 1982).
Motacilla flava(Yellow Wagtail)###-###200 (17.04.2008)###170###10 (17.10.2007)###M###LC###A.3.1
Moreover many winter migrants such as the Wagtails (Motacilla spp.), Blue throat (Luscinia svecica), Sandpipers (Tringa spp.and Actitis spp.) and many others may also lose their wintering grounds.
Six species, Anas zonorhyncha (5.7% of all detections), Riparia riparia (4.3%), Anas platyrhynchos (3.0%), Anas crecca (3.0%), Egretta garzetta (3.0%) and Motacilla alba (2.1%), showed the highest relative abundances in this habitat.