jueves, 13 de octubre de 2011

Common Migrants October 2011

 Common Redshank (Tringa totanus)

Given the absence of rarer species on the island at present, here is a sample of the regular migrants which can be observed almost every year...

The solitary Redshank (Tringa totanus) shown above and below was discovered at the saltpans in Fuencaliente this morning. While at some European estuaries and marshes massive concentrations of this wader are a common sight, on the oceanic island of La Palma just one or two birds turn up occasionally.

The next species - also found at the saltpans - is migratory on the Canary Islands, where the only breeding Motacilla is the fairly widespread Grey Wagtail (Motacilla cinerea).

 White Wagtail (Motacilla alba)

 Dunlin (Calidris alpina)

During recent visits to the saltpans, one or two Dunlins (Calidris alpina) have usually been present, such as the one shown above, photographed this morning. Also to be expected at the site at the moment are one or two Little Stint (Calidris minuta),  a couple of Ringed Plover (Charadrius hiaticula), and the usual Turnstones (Arenaria interpres).

The following series of images shows a Common Sandpiper (Actitis hypoleucos) enjoying a tasty snack on the edge of an irrigation basin in Las Martelas. The dragonfly in question appears to be a female or immature example of the very abundant Crocothemis erythraea, in which adult males are crimson red in colour.

Finally, while the bird on the right in the next image is a regular passage migrant, the species on the left is none other than the Nearctic-Holarctic Buff-breasted Sandpiper (Tryngites subruficollis), first detected on September 25 at the saltpans (see previous post), and still present at the time of writing.

Left: Buff-breasted Sandpiper (Tryngites subruficollis); right: Curlew Sandpiper (Calidris ferruginea)

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