Black Oystercatcher
Scientific Name: Haematopus bachmani
Thresholds:
- Xaana Kaahlii GawGaay Skidegate Inlet (BC145)391 (max.)
- Kyuquot Channel Islets (BC088)250 (max.)
- White Islets and Wilson Creek (BC025)211 (max.)
- Baynes Sound (BC057)192 (max.)
- K'ómoks (BC272)192 (max.)
- Moore and Byers Islands and Banks (BC106)158 (max.)
- Cleland Island & Southeast Clayoquot Sound (BC080)108 (max.)
- Boundary Bay - Roberts Bank - Sturgeon Bank (Fraser River Estuary) (BC017)105 (max.)
- Snake Island (BC055)91 (max.)
- Barkley Sound (BC075)87 (max.)
- Little Qualicum Estuary to Nanoose Bay (BC056)84 (max.)
- Tofino Mudflats (BC002)81 (max.)
- English Bay, Burrard Inlet & Howe Sound (BC020)78 (max.)
- Sidney Channel (BC047)77 (max.)
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.
| Xaana Kaahlii GawGaay Skidegate Inlet (BC145) | ||
|---|---|---|
| Number | Year | Season |
| 81 | 2021 | Winter |
| 88 | 2020 | Winter |
| 80 - 127 | 2019 | Winter |
| 125 | 2017 | Winter |
| 90 | 2017 | Fall |
| 76 - 349 | 2016 | Winter |
| 145 | 2015 | Winter |
| 90 - 108 | 2015 | Fall |
| 170 | 2014 | Winter |
| 126 | 2014 | Fall |
| 106 | 2013 | Winter |
| 100 - 152 | 2013 | Fall |
| 219 - 391 | 2012 | Winter |
| 157 | 2011 | Winter |
| 271 | 2010 | Winter |
| 200 | 2010 | Fall |
| 268 | 2009 | Winter |
| 96 | 2008 | Winter |
| 76 | 2007 | Winter |
| 371 | 2006 | Winter |
| 248 | 2005 | Winter |
| 232 | 2004 | Winter |
| 234 | 2003 | Winter |
| 127 | 2002 | Winter |
| 223 | 2001 | Winter |
| 160 | 2000 | Winter |
| 211 | 1999 | Winter |
| 150 | 1998 | Winter |
| 113 | 1997 | Winter |
| 107 | 1996 | Winter |
| 87 | 1994 | Winter |
| 102 | 1993 | Winter |
| 177 | 1992 | Winter |
| 76 | 1991 | Winter |
| 127 | 1990 | Winter |
| 88 | 1990 | Summer |
| Kyuquot Channel Islets (BC088) | ||
|---|---|---|
| Number | Year | Season |
| 250 | 1988 | Summer |
| White Islets and Wilson Creek (BC025) | ||
|---|---|---|
| Number | Year | Season |
| 99 - 211 | 2020 | Fall |
| 79 - 93 | 2019 | Fall |
| 80 - 109 | 2018 | Fall |
| 80 - 103 | 2017 | Fall |
| 76 - 120 | 2016 | Fall |
| 77 | 2014 | Fall |
| Baynes Sound (BC057) | ||
|---|---|---|
| Number | Year | Season |
| 178 | 2015 | Winter |
| 192 | 2014 | Winter |
| 154 | 2013 | Winter |
| 100 | 2011 | Winter |
| 167 | 2010 | Winter |
| 118 | 2009 | Winter |
| 112 | 2007 | Winter |
| 88 | 2006 | Winter |
| 78 | 2005 | Winter |
| 81 | 2004 | Winter |
| 79 | 1995 | Winter |
| K'ómoks (BC272) | ||
|---|---|---|
| Number | Year | Season |
| 90 - 104 | 2020 | Fall |
| 86 | 2019 | Fall |
| 117 | 2017 | Winter |
| 135 | 2016 | Winter |
| 178 | 2015 | Winter |
| 192 | 2014 | Winter |
| 154 | 2013 | Winter |
| 100 | 2011 | Winter |
| 167 | 2010 | Winter |
| 118 | 2009 | Winter |
| 112 | 2007 | Winter |
| 88 | 2006 | Winter |
| 78 | 2005 | Winter |
| 81 | 2004 | Winter |
| 79 | 1995 | Winter |
| Moore and Byers Islands and Banks (BC106) | ||
|---|---|---|
| Number | Year | Season |
| 85 | 2020 | Summer |
| 158 | 1988 | Summer |
| Cleland Island & Southeast Clayoquot Sound (BC080) | ||
|---|---|---|
| Number | Year | Season |
| 89 | 2014 | Fall |
| 85 | 1992 | Fall |
| 108 | 1986 | Summer |
| Boundary Bay - Roberts Bank - Sturgeon Bank (Fraser River Estuary) (BC017) | ||
|---|---|---|
| Number | Year | Season |
| 80 | 2019 | Fall |
| 105 | 2018 | Winter |
| Snake Island (BC055) | ||
|---|---|---|
| Number | Year | Season |
| 91 | 2014 | Winter |
| 10 | 1999 | Summer |
| Barkley Sound (BC075) | ||
|---|---|---|
| Number | Year | Season |
| 76 | 2015 | Winter |
| 87 | 2006 | Winter |
| 84 | 1985 | Summer |
| Little Qualicum Estuary to Nanoose Bay (BC056) | ||
|---|---|---|
| Number | Year | Season |
| 84 | 2011 | Winter |
| 28 | 1985 | Winter |
| ? | ? | Other |
| Tofino Mudflats (BC002) | ||
|---|---|---|
| Number | Year | Season |
| 81 | 2009 | Fall |
| English Bay, Burrard Inlet & Howe Sound (BC020) | ||
|---|---|---|
| Number | Year | Season |
| 78 | 2006 | Winter |
| Sidney Channel (BC047) | ||
|---|---|---|
| Number | Year | Season |
| 77 | 2019 | Fall |
| 40 | 1995 | Summer |