19.10.08

Aves Ichnusae VI (I-II) 2003



                    VOLUME 6 (I-II) 2003


Articoli e Note/ Papers & Notes
- Deposizioni precoci dell'Aquila reale Aquila chrysaetos in Sardegna. V. Asuni, A. Fadda & M. Medda
- Presenza invernale di Rondine rossiccia Hirundo daurica nella Regione Paleartica occidentale. F. Mascia
- Prima riproduzione di Cicogna bianca Ciconia ciconia in Sardegna. M. Grussu & Gruppo Ornitologico Sardo
- Un’altra prova di nidificazione del Crociere Loxia curvirostra in Sardegna. M. Grussu & V. Asuni
Recenti avvistamenti/ Recent records around the Region
Periodo: gennaio – dicembre 2002 / January - December 2002. A cura di M.
Grussu
Bibliografia ornitologica sarda/Recent Literature. A. Mocci Demartis
Progetti e Ricerche/ Projects and Researches
Recensioni/ Reviews

Foto di copertina/ Cover photograph: Gabbiano corso Larus audouinii in colonia. Isola di Molara, Sardegna. Giugno 1992./ Colony of Audouin’s Gull. Molara islet, Sardinia. June 1992 (Mauro Sanna).

 
Aquila reale/ Golden Eagle Aquila chrysaetos (Alessandro Alberton)

 
ABSTRACTS

Vittorio Asuni*, Antonio Fadda & Maurizio Medda
Early laying of Golden Eagle in Sardinia (Italy).
On 24 February 2002 we observed that in the south east of Sardinia (province of Cagliari) a Golden Eagle pair had already laid two eggs. The event is to be considered precocious for both Sardinian pairs (which usually lay eggs from the last week of February to the end of March) and those observed in the remainder of the Italian territory, where the laying period ranges from mid March to the beginning of April. Certainly, among the surveyed pairs in the province of Cagliari, the observed pair is the only one laying eggs in February. Some ecological parameters such as latitude and altitude were taken into consideration, but no direct correlation was found to justify an earlier laying than that of other known pairs. We can therefore infer that the reason for such an earlier laying is to be found in a physiological feature of the pair, instead of an adaptation to special environmental conditions.
(*)(Via Pergolesi 19 - 09048 Sinnai/ Cagliari)

Francesco Mascia
Winter presence of the Red-rumped Swallow in the Western Palearctic.
An immature individual of Red-rumped swallow was observed from 18th to 25yh December 2001 in the lagoon of Santa Gilla / Elmas (Southern Sardinia). In the Western Palaearctic area the species is a summer visitor; its winter presence occurs rarely but  regularly in Israel and occasionally, with single individuals, in North Africa (Morocco, Tunisia) and Spain. This record in Sardinia was the first in Italy and  the only one supplied with documentary evidence of a prolonged winter stay of the species in the whole Palaearctic area.
(Gruppo Ornitologico Sardo - Via Salomone 32 - 09030 Elmas/ Cagliari)

Marcello Grussu & Gruppo Ornitologico Sardo
First successful breeding of the White Stork in Sardinia.
In 2002 a pair of White Stork bred  in the north of the island in the area of Surigheddu / Alghero  (Sassari)  raising 3 chicks to flying stage. The laying of eggs took place in the first two weeks of April and the chicks took wing around July 15th. It is the first successful case of breeding of the species in Sardinia, where in the past several summering individuals were seen and, in the period 1988-1993, some breeding attempts were made. Besides, in 1993 a pair laid eggs, which however did not hatch. Again in 2002, further 3-4 individuals of White Stork summered in northern Sardinia.
(Gruppo Ornitologico Sardo - C. P. 160/C - 09045 Quartu Sant'Elena/ Cagliari)

Marcello Grussu* & Vittorio Asuni
New breeding record of Common Crossbill in Sardinia.
In summer 2002 several groups of Common Crossbill were observed in the south of Sardinia. A small group stopped for a while in the lower valley of the Riu Solanas/ Castiadas (Gulf of Cagliari). From the second half of July the occurring individuals showed different behaviours, like a singing male on a nest, young individuals fed by adults and the finding of a possible nest visited by the male: all these facts point to the breeding in this site of a couple on a pine tree. This is the second breeding record of this species in Sardinia. The only previous evidence in the city of Cagliari goes back to 1910.
(*)(GOS – C.P. 160/C - 09045 Quartu Sant'Elena/ Cagliari)

Cicogna bianca/ White Stork Ciconia ciconia (Piero Basoccu)


Aves Ichnusae V (I-II) 2002



                    VOLUME 5 (I-II) 2002


Articoli e Note/ Papers & Notes
- Gli uccelli nidificanti a Is Arenas (Sardegna Occidentale). A. Sorace, C. Dettori & M. Visentin
- Les limicoles notés à Capitello (Ouest de la Corse, France) de 1982 à 2000: modalités du passage et effectifs. G. Bonaccorsi
- Osservazione di un Falco della Regina Falco eleonorae parzialmente albino. A. Corso, Carmela Cardelli & Alberto Boto
- Predazione di Chirotteri da parte del Falco della regina Falco eleonorae. A. Corso & D. Aliffi
Recenti avvistamenti/ Recent records around the Region
Periodo: aprile - dicembre 2001/ April – December 2001. A cura di M. Grussu
Progetti e Ricerche/ Projects and Researches
Recensioni/ Reviews

Foto di copertina/ Cover photograph: Marangone dal ciuffo Phalacrocorax aristotelis immaturo. Arcipelago di Tavolara, Sardegna. Aprile 1992./ Juvenile Shag. Tavolara archipelago, Sardinia. April 1992 (Roberto Meloni).

 
Avocetta/ Pied Avocet Recurvirostra avosetta (Alessandro Alberton)
 
ABSTRACTS

Alberto Sorace*, Carlo Dettori & Marta Visentin
The breeding birds of Is Arenas (West Sardinia).
The bird species breeding in the Is Arenas pine wood area were investigated during spring 2001. Visits to the area were carried out from the beginning of March to the beginning of September. From late May to the beginning of June, bird communities were investigated by means of point counts in a pine wood, in a bush area, and in open habitats. The species we found, are listed in Table I, and the community parameters in Table II. Additional species are listed in Table IV. Nocturnal birds were also censused (Table III). In agreement to the fact that pine woods and open habitats are poor habitats, the number of recorded species was low. However, several species of conservation concern were found (Table V). Most of them were in open habitats that, therefore, deserve to be preserved. A high percentage of non-Passeriformes was observed. Particularly abundant were the Great Spotted Woodpecker and the Collared Dove. Nightjars were mostly recorded in open habitats including a golf course, and in the less dense parts of the pine wood.
(*)(SROPU - c/o Via Roberto Crippa 60 D/8 - 00125 Roma/ Acilia)

Gilles Bonaccorsi
Waders at Capitello pound (Western Corsica, France) from 1982 to 2000.
We describe when it is possible to watch the 37 species recorded at Capitello pound from 1982 to 2000. It was nearly all, the corsican species: 39 since XIXth century; 9,380 records are registred by the author. It was the maximum for a corsican site, and the most visited during 19 years. This migrants were commonest in spring, from March to May: 5,558 records of 35 species, with 2,462 records of 34 species in April. The come-back to wintering areas was less interesting, except for four of them. The commonest wader is Common Snipe with 1,367 records: 14.6 % of all. And the rarest are: American Golden Plover, Dotterel and Broad-billed Sandpiper with only one record for each. Effectives are small or very small for practically all the species: for more than 43% numbers are less than 10 specimens, and for only one we can watched more than 100 birds at the same time.
In fact, with demonstrate that Capitello is a small site, poor in resources. It was probably at least, equal in interest with the others pounds and rivers mouths of Western Corsica. Finally, we explain the two factors that influence the occurrence of the waders on this pound. They are: lack of resources and hunting pressure from mid-August to end of February.
(Immeuble azalée, chemin de Biancarello - 20090 Ajaccio/ France)

Andrea Corso*, Carmela Cardelli & Alberto Boto
Record of a Eleonora’s Falcon partially albino.
It is described an Eleonora’s Falcon partially albino observed at Isole Eolie, Messina, Northern Sicily on August 1998. On August 19th we were observing the breeding colony of Eleonora’s Falcon at Isola di Salina when we noticed an abnormally coloured individual. The bird was an adult female of the pale morph. It shown brilliant white outer three secondaries, whole primary-coverts white, one inner secondary white on left wing, white head, breast and upper mantle. The white of the head was less pure and brilliant, a hint of the face pattern (like the moustache mark) was barely visible, with the typical marks washed out. The bird was normally breeding, being paired with a normal dark morph male and being observed several time on a nest hole. This is only the fourth record of abnormally coloured Eleonora’s Falcon known in literature.
(*)(Via Camastra,10 - 96100 Siracusa)

Andrea Corso* & Daniele Aliffi
Predation on bats by the Eleonora’s Falcon.
In August 2000 an interesting hunting behaviour of Eleonora’s Falcon has been noticed at Alicudi Island, Eolie archipelago, (Messina, Northern Sicily). From 4th August to 10th some individuals of this falcon have been observed each day hunting at sunset and during the early night (around 9 to 10 p.m.). The falcons have been observed while catching nocturnal insects and on four occasions some bats. The hunting on nocturnal insects was already been documented in the Eolie Island in the past, but the hunting of bats is poorly reported in literature and there are only few references, never for Sicily before.
(*)(Via Camastra, 10 - 96100 Siracusa)
 
Individuo immaturo di Piviere tortolino Charadrius morinellus. Laguna di Mistras, 29 agosto 2001./ Immature of Dotterel in the lagoon of Mistras, 29th August 2001 (Maurizio Sighele).
 

Aves Ichnusae IV (I-II) 2001





                 VOLUME 4 (I-II) 2001



Articoli e Note/ Papers & Notes
- Checklist of the birds of Sardinia. Updated to December 2001. M. Grussu
- Muta e biometria dell’Occhiocotto Sylvia melanocephala nella Sardegna meridionale. L. Biddau &  G. Ruzzante
- Presenza invernale di Piviere tortolino Charadrius morinellus in Sicilia. A. Corso & C. Iapichino
Recenti avvistamenti/ Recent records around the Region
Periodo: aprile 2000 - maggio 2001 / April 2000 - May 2001. A cura di M.Grussu
Progetti e Ricerche/ Projects and Researches
Novità e commenti/ News and Comment
Recensioni/ Reviews
 
Foto di copertina/ Cover photograph: Picchio rosso maggiore Picoides m. harterti Arrigoni. Endemismo presente soltanto in Sardegna. Monti dei Sette Fratelli, Sardegna, 1999./ The Sardinian endemic Harterti’s Great Spotted Woodpecker is found in this Island only. Sette Fratelli Mts, 1999 (Roberto Meloni).


Airone rosso/ Purple Heron Ardea purpurea (Alberto Tidu)

                    


ABSTRACTS



Luca Biddau* & Gianpaolo Ruzzante*
Biometry and moult pattern of the Sardinian Warbler in South Sardinia, Italy.
We studied moult pattern and measurements of a population of Sardinian Warblers at Capo Spartivento/Cagliari (Sardinia, Italy). A total of 315 birds were trapped and measured, 150 during the post-breeding season and 165 during the overwintering period. The birds overwintering are slihtly larger than the breeding ones. Sex differences significant for wing during the breeding season. We found a population showing a very short wing length and among the smaller known for the Mediterranean areas; 50% of adults have a partial pre-breding moult and 22% of Juvenes have a complete post-juvenile moult; 3 second year birds (n=106) have a first pre-breeding moult replacing some wing feathers.
(*)(GOS - C.P. 160/C - 09045 Quartu Sant'Elena/ Cagliari)

Andrea Corso* & Carmelo Iapichino
Winter records of Dotterel in Sicily (Italy).
On December 20th and 29th 1997 a 1st winter Dotterel has been observed at Capo Murro di Porco, Siracusa (Southeast Sicily). The area is characterized by wide open uncultured fields covered by low Mediterranean macchia and sparse rocks, being then a perfect habitat for the species. These are the first recent winter records of this species for Italy. Probably the bird observed was wintering in the area and thus would be the first wintering for Italy. Wintering in Europe is regularly reported only for Spain. This winter record is not so surprising considering that the species is regularly encountered in winter in the near Tunisia. Further, records of Dotterel are increasingly more common during migration in both autumn and spring in Southeast Sicily.
(*)(Via Camastra, 10 - 96100 Siracusa)
 

Pollo sultano/ Purple Swamphen Porphyrio porphyrio (Piero Basoccu)