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Barn Owl

Scientific Name: Tyto alba

Wikipedia Page

Avibase

Dendroica

Cornell Lab of Ornithology

Thresholds:

GlobalInformation50,000
Regional/ContinentalInformation3,000
Sub-regional/National SARInformation1

Global

1% of the global population estimate. This threshold is used to identify trigger species and IBAs under categories A4i/ii and A4iv.

Regional/Continental

1% of the regional/continental population estimate.

Sub-regional/National SAR

The sub-regional/national SAR threshold = 1% of the COSEWIC population estimate for the region (provinces/territories) in which the species is listed as being at risk. This threshold is used to identify trigger species and IBAs under criterion C1.

Boundary Bay - Roberts Bank - Sturgeon Bank (Fraser River Estuary) (BC017)
Number Year Season
72016Winter
7 - 122014Winter
72013Winter
9 - 202012Winter
982012Summer
72011Winter
622011Summer
10 - 172010Winter
822010Summer
11 - 172009Winter
112009Spring
802008Summer
92008Winter
9 - 142007Winter
602007Summer
11 - 142006Winter
132005Winter
62004Winter
142003Winter
14 - 152002Winter
13 - 152001Winter
11 - 172000Winter
12 - 141999Winter
8 - 111998Winter
8 - 121997Winter
81996Spring
15 - 191995Winter
13 - 151994Winter
15 - 241993Winter
151992Winter
12 - 211991Winter
141990Winter
Cap Tourmente (QC002)
Number Year Season
11993Summer
Dundas Valley and Dundas Marsh (ON005)
Number Year Season
12006Fall
12006Summer
12005Winter
Eastern Lake St. Clair (ON012)
Number Year Season
12008Winter
12007Winter
12006Winter
12003Spring
Long Point Peninsula and Marshes (ON001)
Number Year Season
12007Fall
West End of Lake Ontario (ON022)
Number Year Season
12009Fall