Michele Mendi

Long-distance migratory species breeding in Northern Palearctic (BirdLife International 2021). Wintering areas in tropical Africa, India and S Asia. Overall, global population shows a decreasing trend (BirdLife International 2021).

Season of assessment

B

Population trendDecreasing
Population size
(min-max, best estimate)		681000-920000,789000
Red List categoryLC
Franks, S., Fiedler, W., Arizaga, J., Jiguet, F., Nikolov, B., van der Jeugd, Ambrosini, R, Aizpurua, O., Bairlein, F., Clark, J., Fattorini, N, Hammond, M., Higgins, D, Levering, H., Skellorn, W., Spina, F, Thorup, K. Walker, J., Woodward, I. and Baillie, S.R. (1) (2022) Online Atlas of the movements of European bird populations. https://migrationatlas.org EURING/CMS (1) Principal investigator
Carte

Connectivité globale pour Sarcelle d’été

Most recoveries in Europe, of birds still in passage to/from Africa. Overall, most birds show a NE-SW axis of migration, thus giving rise to parallel migration patterns, with relatively high connectivity, though some overlap in Mali (Zwarts et al. 2009). NW/W garganeys winter in the Sahelian floodplains in Mali-Senegal; NE/E populations in Niger Delta, Chad, even S Tanzania. Exceptional recoveries from this population in India and far E China.

Contrôles par Condition for Sarcelle d’été

Most recoveries are due to dead birds with a great proportion by shooting (ca. 68%). This proportion was higher during the 1961-1990 period (ca. 84%), decreasing to just a 17% during the 1991 – to present time period. In this last time period, most (77%) recoveries were due to birds recaptured alive.

Annual Movements for Sarcelle d’été

Post-breeding migration to Africa starts in Jul/Aug; obvious passage through Europe in Aug/Sep. Recoveries in Africa from Oct to Mar, with recoveries in spring in Europe already patent in Mar. Small number of birds can spend the winter in Europe.

Connectivité par mois par région pour Sarcelle d’été

The N/NW European birds start their post-fledging/post-breeding movements in Aug. Waterbirds hunting season opening time period in NW European countries. Many recoveries in NW in Aug/Sep. Winter destination is reached between Oct and Nov. Most recoveries in Africa from Jan to Mar. Central European populations join Italy before crossing the Mediterranean in Aug/Sep, but in lesser number than in spring. Spring migration mostly throughout E/SE Europe, with many recoveries in Mar/Apr, which seems to reveal a loop migration as compared to autumn.

Références

Statistiques Carte
Nombre de données Nombre d'individus Nombre de contrôles
Données cartographiées*
Données totales disponibles
*Données cartographiées avec des contrôles >= à 50 km
Références Carte
BirdLife International2021 . Species factsheet: Spatula querquedula.
Zwarts, L., Bijlsma, R. G., van der Kamp, J., Wymenga, E. 2009 . Living on the edge: Wetlands and birds in a changing Sahel. KNNV Publishing, Zeist

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