Irregularly Migratory and Rare Waterbird Species within Two Representative Wetlands from the Central Romania (South-East Transylvania) Based on Long Term Inventory

Waterbird species from the category of rare or irregular migratory, can have faunistical and conservative value, especially locally, but also regionally or nationally. This paper presents the results of long-term avifauna inventories (25 years) from two wetlands of importance for waterbirds, located in southeastern Transylvania, central Romania. 44 species of waterbirds from these phenological categories have been identified, some for the first time at national or regional level (Transylvania), others with a high number of individuals for the reference area or even records for Transylvania. Moreover, at least one of the species has bred sporadically here, as the only place inside the country and the second in Romania (Ichthyaetus melanocephalus), another is possibly breeding for several years (Grus grus).