Ensemble de données

Inventaire des hiboux nocturnes de l'Alberta

À propos

Résumé de l’ensemble de données

The purpose of the Alberta Nocturnal Owl survey is to collect information to help determine status of species, and to act as an early warning signal if populations are declining. The goals of this program are to: obtain information on distribution of nocturnal owls in Alberta, estimate relative abundance of owls collect information that will lead to estimating population trends of nocturnal owls at regional and provincial scales, as well as contribute to a North America-wide program, determine habitat associations of nocturnal owls.

Saison(s) et fréquence

Volunteers are needed to help run owl surveys during March, April, and early May. Only two nights (approximately two hours each night) are required for these surveys.

Région géographique couverte

Alberta

Principales espèces couvertes

Owls

Objectifs

The purpose of the Alberta Nocturnal Owl survey is to collect information to help determine status of species, and to act as an early warning signal if populations are declining. The goals of this program are to: obtain information on distribution of nocturnal owls in Alberta, estimate relative abundance of owls collect information that will lead to estimating population trends of nocturnal owls at regional and provincial scales, as well as contribute to a North America-wide program, determine habitat associations of nocturnal owls.

Méthodologie

Plan d’échantillonnage

Randomly selected routes

Méthodes de terrain

Similar to other roadside surveys using tape playback. Two volunteers drive pre-determined route, stopping at fixed intervals (1.6 km apart) along roadside. At each stop, timed listening periods. Surveyor identifies and records all owls seen or heard during each listening period. Surveys begin one half hour after sunset during a single evening in April and take approximately 3 hours to complete (not including travel time to and from the survey route).

Partenaires

Canadian Wildlife Service

Comment citer

Oiseaux Canada, Canadian Wildlife Service, and Beaverhill Bird Observatory. 2025. "Alberta Nocturnal Owl Survey". Données obtenues de NatureCounts, Oiseaux Canada.