Movements and Migration

Natal Philopatry and Dispersal

Information needed.

Adult Fidelity to Breeding Site and Dispersal

Site fidelity of individuals is unknown, but the same breeding and nonbreeding sites are usually used across years, suggesting a certain degree of site fidelity. Housse (92 Housse, R. (1945). Las Aves de Chile en su Clasificación Moderna. Ediciones de la Universidad de Chile, Santiago, Chile. Close ) stated that during the rainy season–which occurs outside the mountain range–"their existence is wandering: they stay only a few days in the same place," going in pairs or small groups.

Fidelity to Overwintering Home Range

High site fidelity (at least to overwintering home range) seems to be characteristic of the species. During the nonbreeding season (May–August), it tends to use the same areas over the course of the same year, and this pattern may be repeated across multiple years (91 Isacch, J. P., and M. M. Martínez (2003). Habitat use by non-breeding shorebirds in flooding pampas grasslands of Argentina. Waterbirds 26:494–500. Close , 78 Alfaro, M., and A. B. Azpiroz (2017). Chorlo Cabezón (Oreophollus ruficollis ruficollis). In Libro Rojo de las Aves del Uruguay. Biología y conservación de las aves en peligro de extinción a nivel nacional (A. B. Azpiroz, S. Jiménez, and M. Alfaro, Editors), DINAMA y DINARA, Montevideo, Uruguay. Pp. 131–141. Close ).

The overall patterns and timing of movements of the Tawny-throated Dotterel are not well known, especially for northern populations of the nominate subspecies that occur in northern and central Chile and southern Peru. The southern population of the nominate subspecies breeds during the austral summer months (September–April) in southern Patagonia; after breeding, some portion of the population uses an eastern route and migrates along the eastern fringe of the southern tip of the continent to Argentina, Uruguay, and extreme southeastern Brazil, mainly in Rio Grande do Sul (68 Vilina, Y. A., and J. L. Gonzalez (1998). The migration routes of the Tawny-throated Dotterel Oreopholus ruficollis in Chile: resolving a complex jigsaw puzzle. Wader Study Group Bulletin 87:59–65. Close , 93 Ghizoni-Jr., I. R., and M. A. Guimarães de Azevedo (2010). Registros de algumas aves raras ou com distribuição pouco conhecida em Santa Catarina, sul do Brasil, e relatos de três novas espécies para o Estado. Atualidades Ornitológicas 154:33–46. Close , 94 Maciel, E., and C. E. Blanco (2014). Primeiro registro da batuira-de-papo-ferrugineo, Oreopholus ruficollis e redescoberta do falcio·de-peito-laranja, Falco deiroleucus no estado do Rio de Janeiro. Atualidades Ornitológicas 178:4–5. Close ), before returning to its breeding grounds from late August to September. In Buenos Aires province, the species was generally present between late April/early May and mid/late August (91 Isacch, J. P., and M. M. Martínez (2003). Habitat use by non-breeding shorebirds in flooding pampas grasslands of Argentina. Waterbirds 26:494–500. Close , 73 Isacch, J. P., and M. M. Martínez (2003). Temporal variation in abundance and the population status of non-breeding Nearctic and Patagonian shorebirds in the flooding pampa grasslands of Argentina. Journal of Field Ornithology 74(3):233–242. Close ).

The northern population (subspecies ruficollis) breeds in highlands and lowlands during spring and early summer (August–December; 68 Vilina, Y. A., and J. L. Gonzalez (1998). The migration routes of the Tawny-throated Dotterel Oreopholus ruficollis in Chile: resolving a complex jigsaw puzzle. Wader Study Group Bulletin 87:59–65. Close ). It is considered possibly sedentary at least in parts of its range (1 Hayman, P., J. H. Marchant, and A. J. Prater (1986). Shorebirds. An Identification Guide to the Waders of the World. Croom Helm, London, UK. Close ). Parts of this population may migrate to areas of central and northern Chile (some remain all year in the Atacama Region where it is irrigated), where they occur during the winter and spring. After early summer (December), however, birds in the northern lowlands mostly disappear, corresponding to the driest part of the year; it is also less frequent in the highlands of the extreme north (68 Vilina, Y. A., and J. L. Gonzalez (1998). The migration routes of the Tawny-throated Dotterel Oreopholus ruficollis in Chile: resolving a complex jigsaw puzzle. Wader Study Group Bulletin 87:59–65. Close ).

Although there are historical records of movement to Ecuador (56 Ridgely, R. S., and P. J. Greenfield (2001). The Birds of Ecuador. Volumes 1 and 2. Cornell University Press, Ithaca, NY, USA. Close ), this migratory population was apparently extirpated (85 Freile, J., and R. Restall (2018). Birds of Ecuador. Bloomsbury, London, UK. Close ); it is now considered accidental there.

Post-breeding

The post-breeding routes of migration are poorly known (84 Barros, R. (2018). Chorlo de campo. In Atlas de las Aves Nidificantes de Chile (F. Medrano, R. Barros, H. Norambuena, R. Matus, and F. Schmitt, Editors), Red de Observadores de Aves de Chile, Santiago, Chile. pp. 184–185. Close ). Birds that breed in high areas of the Andes migrate to lower elevations. In contrast, the Patagonia population would migrate northwards through the Argentine pampas during the fall-winter (April–May; 20 Wiersma, P. (1996). Family Charadriidae (plovers): species accounts. In Handbook of the Birds of the World, Volume 3 (J. del Hoyo, A. Elliott and J. Sargatal, Editors), Lynx Edicions, Barcelona, Spain. pp. 411–442. Close , 91 Isacch, J. P., and M. M. Martínez (2003). Habitat use by non-breeding shorebirds in flooding pampas grasslands of Argentina. Waterbirds 26:494–500. Close ,4 Martínez Piña, D. E., and G. E. González Cifuentes (2021). Birds of Chile. Bloomsbury, London, UK. Close ), remaining in flocks outside the breeding season (6 Fjeldså, J., and N. Krabbe (1990). Birds of the High Andes: A Manual to the Birds of the Temperate Zone of the Andes and Patagonia, South America. Zoological Museum, University of Copenhagen, and Apollo Books, Copenhagen and Svendborg, Denmark. Close ). In Huentelauquén (coastal central Chile), an important nonbreeding site, birds arrive in April and leave the area in September (54 Pardo, B., I. Barraza, A. Briceño, M. Castro, I. Flores, A. Jara, E. López, P. Palma, and M. Soto (2018). Saber campesino sobre el chorlo de campo (Oreopholus ruficollis) en el sitio Ramsar Las Salinas de Huentelauquén. Brotes Científicos 2:35–42. Close ).

Pre-breeding

Information is needed.

Routes

Information is needed.

Information is needed.

Information is needed.