The monitoring of themigratory birdlife in the Tre Croci chain, promoted since 2013 by the Italian Hunting Federation and the Veneto Region, involving FIdC hunting surveillance volunteers, professionals and enthusiasts for ten days.
A basic element
The annual monitoring represents a basic element of knowledge and historical dating of the phenomenon of migration in the Vicenza passes, standardized with a scientific method and repeated annually. The species examined are the chaffinch, the siskin, song thrush, redwing and fieldfare.
The stations examined
The following three stations were identified for monitoring and present:
heterogeneous station characteristics, in particular:
Bocchetta Mesole: of the three, it is the most eastern location and is located at an altitude of 1555 m above sea level. The site is mainly made up of alpine grassland ecosystems, with the presence of mountain pine patches relegated to the perimeter edges of the grazed surfaces. The gully ascended by the migrants has steep slopes with rock jumps and vegetation linked above all to monospecific populations of mountain pine;
Catarin vent 1: this is the central vent. The location is set in a beech forest that opens directly into the debris gully. If the predominant tree species in the inlet is beech, the ecologically disturbed conditions of the gully favor pioneer species with green alder and mountain pine.
Catarin vent 2: this is the vent located at the westernmost end and which
presents stationary conditions attributable to the Catarin 1 vent. All the other details can be consulted at this link: https://www.federcacciavicenza.it/sito/images/documenti/Report_avifauna_2023.pdf