Iztok Geister

Zavod za favnistiko Koper, SI-6276 Pobegi, Kocjančiči 18

IZVLEČEK

Junija leta 2001 je v Sečoveljskih solinah gnezdil par sabljark Recurvirostra avosetta, kar je prva gnezditev te vrste iz reda pobrežnikov (Charadriiformes) v Sloveniji. V gnezdu na peščini sredi opuščenega solinskega polja sta bili dve jajci, izvalil pa se je en mladič, a je po nekaj dneh izginil.

Ključne besede: Recurvirostra avosetta, razširjenost, gnezditev, Sečoveljske soline, Slovenija

SINTESI

Una coppia di avocette (Recurvirostra avosetta) ha nidificato nelle saline di Sicciole nel giugno 2001. Si tratta della prima nidificazione di questa specie dell'ordine dei Caradriformi in Slovenia. Delle due uova presenti nel nido, situato su terreno arenoso in un campo abbandonato delle saline, uno solo si è schiuso, ma il pulcino è scomparso dopo un paio di giorni.

Parole chiave: Recurvirostra avosetta, distribuzione, nidificazione, saline di Sicciole, Slovenia

Iztok Geister

Institute of Faunistics Koper, SI-6276 Pobegi, Kocjančiči 18

SUMMARY

In spring 2001, a pair of Avocets Recurvirostra avosetta bred at the Sečovlje Salina (Piran, Slovenia), which is the first confirmed breeding by this species of the order of Charadriiformes in Slovenia. The nest was built on a patch of sandy ground and contained two eggs. Only one chick, however, was hatched, and even this disappeared in a couple of days time. Judging from the date of hatching, the eggs were laid in early June. At the time of nest building the sandy patch was undoubtedly an islet, which was testified by the relatively high and probably simultaneously raised nest. But if the nest building and the beginning of hatching are something completely usual with this bird, this cannot be claimed of its asocial nesting and the clutch size. The author believes that both, the asocial nesting as well as the smallness of the clutch - and after all the fact that only one chick was hatched - can be attributed to the inexperience of the parents. Namely, the Avocet becomes sexually mature only in the third calendar year of its life, which is the reason why in the second calendar year the nesting anomalies are more recurrent than otherwise. The young's ruin, however, cannot be ascribed solely to the youthful inexperience, for the Avocet's breeding success is generally very low, particularly in places with gulls dwelling nearby (Glutz von Blotzheim et al., 1977).

Key words: Recurvirostra avosetta, distribution, breeding, Sečovelje Salina, Slovenia