Showing posts with label grus canadensis. Show all posts
Showing posts with label grus canadensis. Show all posts

Thursday, 30 August 2012

SOME NOTES ON RARE BIRDS: PECTORAL SANDPIPER, RÜPPELL’S VULTURE, SANDHILL CRANE AND CACKLING GOOSE

Posts of this blog habitually deal with the vagrants that turn up in Extremadura. On this occasion we are going to look at several at once, each one of which had its own blog post or mention in the past.


Pectoral sandpiper (Calidris melanotos). The July 2012 summary reported the sighting of one bird at Charca de Esparragalejo (Badajoz) on 13 July (Ángel Luis Sánchez and Ángel Sánchez, top photo) and 14 July 2012 (Sergio Mayordomo, Eva Palacios -bottom photo- and César Clemente). This was the ninth record for Extremadura, the previous birds turning up in 2002, 2006, 2008 (3 birds), 2010 (2 birds) and 2011. As it happens the last bird also turned up in the same pond, Charca de Esparragalejo. The eight previous records were juveniles on post-breeding passage in September and October. The 2012 bird was an exception to this rule, an adult that turned up in July; it was also one of the four birds reported in Spain that month (according to Reservoir Birds) [Posts on pectoral sandpiper in Extremadura].


The pectoral sandpiper is in fact one of the most frequently reported rarities in Spain, with over 250 records up to 2009. There has also been an upward trend of observations in recent years, with at least 50-60 birds reported each year in 2008, 2010 and 2011. Oddly enough, in 2009 not one bird was seen in Spain; the last time this happened was back in 1989 (CR-SEO, 2011).


Rüppell's Vulture (Gyps rueppellii). In an earlier post we commented on a bird photographed in San Vicente de Alcántara (Badajoz) on 10 January 2009 (José Gordillo); this bird has now been accepted by the rarities committee (CR-SEO, 2011); according to the committee it was an adult with plumage features typical of the west African population. But the nature magazine Quercus of July 2012 has surprised us with an article signed by one of the photographers of the bird in question (Gordillo, 2012) suggesting that the bird shows traits typical of both Rüppell's Vulture and Griffon Vulture (Gyps fulvus). It is therefore quite possible that the bird is a hybrid, an opinion backed up by raptor experts like Dick Forsman, William Clark and Javier Elorriaga. The case doesn't yet seem to be closed, therefore. Sierra de San Pedro in Extremadura was the first site in Spain to record Rüppell's Vulure back in 1990; in the Portuguese stretch of the River Tagus a bird was seen shortly afterwards sitting on a nest (incubating?) and since then to date there have been regular sightings of adults in this area, especially over the border in Portugal. [Other posts on Rüppell's Vulture]

To wind up this small compilation of rarities, we are pleased to report that two Extremadura records of the utmost interest have now been officially accepted:
- Sandhill Crane (Grus canadensis), seen in November 2011 and January 2012 in Don Benito (Badajoz). First record for Spain.
- Cackling Goose (Branta hutchinsii), seen in January and February 2010 in Casas de Hitos, Navalvillar de Pela (Badajoz)-Madrigalejo (Cáceres). Second record for Spain.

Sources: 
- CR-SEO (Rarities Committee of SEO). 2011. Observaciones de aves raras en España, 2009. Ardeola 58(2). 
- Gordillo, J. 2012. Posible híbrido entre buitre leonado y buitre moteado. Quercus 217:43.

Monday, 14 November 2011

SANDHILL CRANE. FIRST FOR EXTREMADURA AND SPAIN

Manuel Gómez Calzado, without doubt the person with most crane-watching hours behind him in Extremadura, has reported the sighting of a Sandhill Crane (Grus canadensis) in his personal blog (grullas veo). The bird was seen on 4 November 2011 grazing stubble in a flock of ten Common Cranes (Grus grus) on the estate called Don Benito between Torviscal and Palazuelo (Badajoz). He explains in the blog entry that the bird was only about 200 metres away, the visibility was perfect and he was able to take in all the plumage details for about 5 minutes: clearly smaller in size than the Common Cranes alongside, a paler grey colour overall, a bright red bald patch on the crown, no black in the neck and dark patches on the wing coverts, a characteristic of this bird's winter plumage. When it took flight its smaller size again stood out against its bigger cousins. This description suggests that it was not a young bird. Manolo Gómez returned to the area on following days but could not relocate the bird. After word of the finding got out, other birders flocked to the area but no one had any luck as far as we know. Although it's a bit like looking for a needle in a haystack, there's a lot of winter left for looking, so there is still hope.

Sandhill Crane (Grus canadensis) photographed in United States by Ron Flemal (taken from IBC).

Unfortunately there are no photos of the Extremadura bird. If accepted by the rarities committee it will be the first record for Extremadura and Spain.

After a quick trawl through the Net in search of info we have come up with the following list of former sightings in Europe:
- Cork, Ireland (killed by hunters on 14/09/1905)
- Faroe Isles (one adult on 14/10/1980)
- Fair Isles, Shetland, Scotland (one juvenile on 26/04/1980)
- Shetland Isles, Scotland (one juvenile on 25 and 26/09/1991); this bird then moved on to Holland (17-26/09/1991; the firs record on mainland Europe)
- Flores Isles, Azores, Portugal (one juvenile from 26/06 to 03/07/2000)
- Orkney Isles, Scotland, (one adult, 22-29/09/2009)
- Les Landes, Southwest France (one adult on 11/10/2009). Might be the one seen earlier in Scotland. Hopes were harboured that it might move on to Spain but it was never seen here.
- Finland (one adult, 05/09/2011)
- Estonia (the former bird; 06-08/09/2011)
- Scotland (one 2nd-winter bird on 22-26/09/11 in Aberdeenshire, and then maybe the same bird in England 29/09 to 07/10/2011 in Northumberland). This might be the same bird that has turned up in Extremadura.

This means that, with the latest Badajoz sighting, there have only been 12 Sandhill Cranes seen in Europe, four of them in 2011. Our heartfelt congratulations therefore go out to Manolo Gómez Calzado for this memorable find, just reward or so many years watching his beloved cranes in the field. Note also that Manolo was the first person to see a Demoiselle Crane (Grus virgo) in Spain, from 4 to 14 February 1996 in Navalvillar de Pela (Badajoz), later seen on 7-8 March in Gallocanta. In this case a feral bird cannot be ruled out. In any case it was the first accepted record of a Demoiselle Crane in Spain, a species that bred in the past, with the last Iberian records in Badajoz back in 1924.