Aperçu
Nom du projet
Inventaire des hiboux nocturnes du Manitoba
Niveau d'accès
par requête
Première année
1990
Fin du projet
Ongoing
Ensemble de données
Inventaire des hiboux nocturnes du Manitoba
À propos
Résumé de l’ensemble de données
Most species of owls are nocturnal and are therefore poorly monitored by existing multi-species surveys, such as the breeding bird survey, migration Monitoring, and Christmas bird counts. Information on distribution, abundance, and population trends of Manitoba owls is required to monitor their conservation status. Manitoba Nocturnal Owl Survey was initiated in 1991 to obtain information on owl distribution, estimate their relative abundance, estimate trends in their population, determining habitat associations of owls.
Région géographique couverte
Manitoba
Principales espèces couvertes
Target species are nocturnal calling owls including Northern Saw-whet Owl, Great Horned Owl, Great Grey Owl, Barred Owl, Boreal Owl and Long-eared Owl.
Objectifs
To obtain information on owl distribution, estimate their relative abundance, estimate trends in their population, and determine habitat associations of owls.
Méthodologie
Plan d’échantillonnage
Randomly selected routes along established roads
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 minimum of one evening from March 15 to April 15 and take approximately 1.5 hours to complete (not including travel time to and from the survey route).
Partenaires
Manitoba Natural Resources and Indigenous Futures
Comment citer
Manitoba Natural Resources and Indigenous Futures, Discover Owls, Nature Manitoba and Birds Canada. 2026. "Inventaire des hiboux nocturnes du Manitoba". Données obtenues de NatureCounts, Oiseaux Canada. 10.71842/6xe8-ss89
