Migration pattern of Curlew sandpipers and Red-necked stints

Breeding sites

Figure 1: Estimated breeding sites of tracked Curlew sandpipers (left) and Red-necked stints (right). The colored areas indicate the breeding range derived from BirdLife. The rectangles are breeding sites during the Arctic summer in 2018 and circles are estaimted sites during 2019.

Figure 1: Figure 1: Estimated breeding sites of tracked Curlew sandpipers (left) and Red-necked stints (right). The colored areas indicate the breeding range derived from BirdLife. The rectangles are breeding sites during the Arctic summer in 2018 and circles are estaimted sites during 2019.

Migration routes

Northward migration

Southward migration

Stoppover sites (preliminary)

The maps show the stopover sites of Curlew sandpipers (left) and Red-necked stints (right) for both migratory seasons. Each dot represents a cluster of stopover sites, meaning that individual stopover sites are merged together. The size of the circles represent the sum of the time the individuals spent in the cluster.

Figure 2: The maps show the stopover sites of Curlew sandpipers (left) and Red-necked stints (right) for both migratory seasons. Each dot represents a cluster of stopover sites, meaning that individual stopover sites are merged together. The size of the circles represent the sum of the time the individuals spent in the cluster.

The odd Curlew sands

Two Curlew sandpipers showed remarkable migrations. BQ877 (KAP) is the first tracked shorebrid from the EAAF migrating west of the Himalayas during southward migration. BJ573 (DKH) remained in Burma for the non-breeding season 2019 before migrating back north to the breeding site. On the way south, the logger stopped in the tropics but the bird has be recaptured on the deployment site in 2020.

BQ877

BJ573

Tags

Table 1: Table 1: Succesfully retrieved Curlew sandpipers.
Species Band Flag GeoID Year Comment
Curlew Sandpiper HSB BJ539 2018
Curlew Sandpiper DUP BJ547 2018
Curlew Sandpiper BJ549 2018
Curlew Sandpiper JBB BJ571 2018
Curlew Sandpiper BJ575 2018
Curlew Sandpiper JBC BJ576 2018
Curlew Sandpiper HCE BJ577 2018
Curlew Sandpiper BJ645 2018
Curlew Sandpiper 042-77677 DKH BJ573 2019
Curlew Sandpiper JBB 2019 Logger failed
Curlew Sandpiper 042-77663 DJN 2019 No data
Curlew Sandpiper 042-83917 KCU BQ488 2019
Curlew Sandpiper 042-83086 JRL BQ332 2019 Did not migrate
Curlew Sandpiper KAP BQ877 2019
Curlew Sandpiper 042-78790 KAK BQ494 2019
Curlew Sandpiper 042-78815 JBT BQ884 2019
Table 2: Table 2: Succesfully retrieved Red-necked stints.
Species Band Flag GeoID Year Comment
Red-necked stint 036-90484 X738 2017 Did not migrate
Red-necked stint 036-80024 X741 2017
Red-necked stint 036-86159 X742 2017
Red-necked stint 036-79988 X763 2017
Red-necked stint 036-85261 X765 2017
Red-necked stint 036-93634 X773 2017
Red-necked stint 036-90135 X778 2017
Red-necked stint X780 2017
Red-necked stint 036-76284 X781 2017
Red-necked stint 036-76366 BQ897 2019
Red-necked stint 036-92471 BQ593 2019
Red-necked stint 036-92907 BQ888 2019
Red-necked stint 036-94832 BQ590 2019
Red-necked stint 036-94909 BQ916 2019 Did not migrate
Red-necked stint 036-95561 BQ592 2019
Red-necked stint 036-99163 BQ587 2019
Red-necked stint 036-96507 BQ576 2019
Red-necked stint 036-99018 BQ913 2019

Acknowledgements

As always, this project was made possible by the many enthusiastic members of the Victorian Wader Study Group.

The report was compiled by:

Simeon Lisovski1,2, Ken Gosbell2 and Marcel Klaassen2,3

1 Alfred-Wegener-Institute Helmholz Centre for Marine and Polar Research, Potsdam, Germany. 2 Victorian Wader Study Group, Australia. 3 Deakin University, Centre for Integrative Ecology, Geelong, Australia.