Sparrowhawk

 Identification of the "Mystery Bird" shown in the previous post was confirmed by the next three pictures received today. The barring on the pale breast is clearly visible, as are the tail bands. 

My thanks to the photographer Roger Ligter for permission to publish these excellent shots of a magnificent raptor.

Sparrowhawk (Accipiter nisus)

The Sparrowhawk (Accipiter nisus) is described in the Atlas de las aves nidificantes en el archipiélago canario (Ed. J. A. Lorenzo, Madrid, 2007) as follows:

"...widely distributed on La Palma in all types of forested areas, from the far north of the island to the vicinity of Fuencaliente in the south.  Although absent from drier zones, urban environments or farmland, it is often seen when hunting there..."

Despite being a widespread species , one rarely gets the chance to witness bathing scenes, such as those shown in the present post!

Readers of this blog are invited to send news of interesting sightings on the island of La Palma to the author at: grajaland@gmail.com

Mystery bird in El Paso

On Nov 9 I was sent these two photographs of a bird of prey, taken at a small water tank in a garden in El Paso:

The author of the pictures (Roger Ligter) requested help with  identification of the species. I was surprised by the amount of pink on the bird's plumage, and a better view of the breast would have been helpful. My final verdict, after seeking a second opinion from an experienced local birder, is that the mystery raptor is an adult Sparrowhawk (Accipiter nisus).

Lesser Yellowlegs...at last!

Lesser Yellowlegs (Tringa flavipes)

The juvenile Lesser Yellowlegs (Tringa flavipes) shown in the present post was discovered at the saltpans in Fuencaliente (Las Salinas) this morning, foraging together with 2 Redshanks (Tringa totanus), 2 Curlew Sandpipers (Calidris ferruginea) and a Little Stint (Calidris minuta) - plus the usual Ringed Plovers (Charadrius hiaticula) and Turnstones (Arenaria interpres).

Identification of this species at such close quarters poses few problems, and most of the relevant points can be appreciated in the present series of images: the fine, straight, dark-coloured bill; the long primary projection beyond the tertials and tail; the short supercillium mainly in front of the eye...and, of course, the unmistakable, mustard-yellow legs.

Eduardo de Juana (Aves Raras de España, Lynx, 2006) gives the following figures for sightings of this North American breeding species up to the year 2003: GB 216, France 34, mainland Portugal 11, Azores 14...with 49 records in Spain for the same period, of which 7 were in the Canaries.

More recent information gleaned from Canary Islands Birding News mentions 9 Canary Island records accepted by the Spanish Rarities Committee from the islands of La Palma (J.M. Castro, Las Martelas, 2003), Tenerife, Gran Canaria, Fuerteventura and Lanzarote, with a few more pending homologation. At national level, the same source quotes a figure of 54 birds.

The Spanish observations peak in autumn, coinciding with those of mainland Portugal and North Africa, and are noticeably later than those of other European countries, suggesting that these trans-Atlantic vagrants initially make landfalls further north, and then move progressively south.

Having already seen a number of the commoner Nearctic waders on La Palma, I had been looking forward to my first Yellowlegs, and this sighting will be submitted to the Spanish Rarities Committee in due course.

The next two images are included merely to highlight a specific identification feature: the white rump, with no white V (pointed extension) running up the back, as in Greenshank (Tringa nebularia), Redshank (T. totanus) and Marsh Sandpiper (T. stagnatilis)

Spoonbills, October 2011

Eurasian Spoonbills (Platalea leucorodia)

The above image shows two Eurasian Spoonbills (Platalea leucorodia) found resting at the saltpans in Fuencaliente, presumably after a long migratory flight, on the morning of October 19. They have chosen one of the centrally-located pans, well away from the sign-posted path running round the perimeter of the complex, and strictly out of bounds to the general public. The same spot is also commonly used by Yellow-legged Gulls (Larus michahellis) as a daytime refuge.

Described in Birds of the Atlantic Islands (Tony Clarke, Helm, 2006) as being "scarce in winter and on passage in the Canary Islands", several small groups of this species have nevertheless been recorded on Tenerife in the last few years. See avescanarias.blogspot, the blog of SEO/Birdlife on the Canaries for more details.

The same two birds in flight

As regards La Palma, 3 Spoonbills were discovered at the Fuencaliente saltpans (Las Salinas) in mid-October 2008, a single individual at a freshwater irrigation basin in Las Martelas in November 2008, and another solitary bird in the Tazacorte area in September 2009, photos and details of which have appeared in this blog.

Thanks to scientific ringing, it is now known that most of the Spoonbills visiting the Canaries come from Dutch breeding colonies, and have their winter quarters in the Arguin Bank, off the coast of Mauritania. Although some of these migratory birds simply pass through the Canaries on their outbound journey, others overwinter in the archipelago. Martin and Lorenzo (2001, Aves del Archipiélago Canario) present data on thirty-odd ringed birds, many originating from the Netherlands, including cases of some birds returning to the same Canary Island locality over a number of consecutive winters. Nevertheless, some birds of different origin have also been recorded, for example from France, although in much smaller numbers.

The two birds shown leaving the saltpans to continue their journey...

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)

Buff-breasted Sandpiper September 2011

Buff-breasted Sandpiper (Tryngites subruficollis)

Discovered at the Fuencaliente saltpans (Las Salinas) this morning, this is my second Buff-breasted Sandpiper (Tryngites subruficollis) on La Palma, following my first sighting on Sep 29 2010 at the same location (see corresponding blog post).

The bird shown here was foraging restlessly around the edges of two adjacent pans, together with 4 Sanderlings (Calidris alba), a couple of Ringed Plover (Charadrius hiaticula), and the usual small numbers of Turnstones (Arenaria interpres).

The characteristic buff tones are clearly visible in the above image

This species is held to be the second most frequent Nearctic wader recorded in Europe, after the Pectoral Sandpiper (Calidris melanotos). Since 1960, it has been considered an annual visitor to Great Britain, where it ceased to be classified as a rarity from 1983 onwards. By the year 2003, 620 birds had been recorded there.

In Spain, the Rarities Committee had accepted 28 records of this species by 2003, making it the third most common American wader at national level, after the previously cited Pectoral Sandpiper and the Lesser Yellowlegs (Tringa flavipes). The Spanish sightings came mainly from Galicia (11), Catalonia (5) and the Canaries (6), with another 6 from Portugal.

Since 2003, the number of observers has increased considerably, with the result that fewer migrant birds escape detection: as a matter of fact, in recent weeks, unusually high numbers of Buff-breasted Sandpipers have been reported from various locations around the country, including 2 on Lanzarote, 11 in the Ebro Delta, and 4 in Galicia.


Observations of Buff-breasted Sandpiper in Spain mainly correspond to the post-breeding migratory period, with almost all records occurring between the end of August and mid-October, and hardly any in spring. As is the case with other Nearctic waders, the Canary Island sightings tend to be somewhat later, suggesting that birds make a stopover in mainland Europe before reaching the islands.


Most of the information in this post comes from Aves Raras de España, E. de Juana, Lynx Edicions 2006.

The present sighting will be submitted to the Spanish Rarities Committee in due course.

Two Pectoral Sandpipers!

Two juvenile Pectoral Sandpipers (Calidris melanotos)

Late on Monday evening (Sep 19), a second Pectoral Sandpiper (Calidris melanotos) was discovered in Las Martelas, having joined the individual featured in the previous post, and both were photographed this morning (Sep 20) in two neighbouring irrigation tanks.

The birds started foraging in close proximity to each other, in the rather grim, man-made habitat shown below:

The far from idyllic surroundings can be appreciated in the next image: food items gathered on the sheer concrete slopes of the basin were mostly insects, including dragonfly and their larvae. A couple of Common Sandpipers were also searching for food in the same manner:


Eventually, the two Pectorals moved across to the sunny side of the pond, where I managed to photograph one of them, before both flew off to another basin:


The two birds were soon re-located and the two remaining pictures, plus the one at the top of this post, were taken in much better light conditions:

Pectoral Sandpipers foraging on a floating layer of pondweed