Acadian Flycatcher
Scientific Name: Empidonax virescens
Thresholds:
- Port Franks Forested Dunes (ON024)20 (max.)
- Skunk's Misery Complex (ON010)17 (max.)
- Norfolk Forest Complex (ON009)12 (max.)
- Clear Creek (ON033)10 (max.)
- Long Point Peninsula and Marshes (ON001)10 (max.)
- Greater Rondeau Area (ON007)8 (max.)
- Southwest Elgin Forest Complex (ON048)7 (max.)
- Point Pelee (ON006)5 (max.)
- Springwater Conservation Area (ON028)4 (max.)
- Pelee Island Natural Areas (ON013)3 (max.)
- Eastern Lake St. Clair (ON012)2 (max.)
- Leslie Street Spit (ON038)2 (max.)
- Little Otter Creek Complex (ON044)2 (max.)
- Point Abino (ON058)2 (max.)
- West End of Lake Ontario (ON022)2 (max.)
- Beamer Conservation Area (ON023)1 (max.)
- Dundas Valley and Dundas Marsh (ON005)1 (max.)
- Holiday Beach / Big Creek Conservation Area (ON034)1 (max.)
- Lac Deschênes-Ottawa River (ON112)1 (max.)
- Niagara River Corridor (ON002)1 (max.)
- Prince Edward County South Shore (ON003)1 (max.)
- Twelve Mile Creek Headwaters (ON021)1 (max.)
- Wildwood Gull Roost (ON045)1 (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.
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.
| Port Franks Forested Dunes (ON024) | ||
|---|---|---|
| Number | Year | Season |
| 1 - 2 | 2021 | Fall |
| 5 - 9 | 2021 | Summer |
| 4 - 5 | 2021 | Spring |
| 1 - 2 | 2020 | Fall |
| 6 - 20 | 2020 | Summer |
| 4 - 13 | 2020 | Spring |
| 1 - 2 | 2019 | Fall |
| 3 - 8 | 2019 | Summer |
| 1 - 4 | 2019 | Spring |
| 4 | 2018 | Fall |
| 1 - 3 | 2018 | Summer |
| 1 - 3 | 2018 | Spring |
| 4 - 11 | 2017 | Fall |
| 3 - 15 | 2017 | Summer |
| 1 - 7 | 2017 | Spring |
| 1 | 2016 | Fall |
| 1 - 2 | 2016 | Summer |
| 1 - 2 | 2016 | Spring |
| 1 - 3 | 2015 | Summer |
| 2 | 2015 | Spring |
| 1 | 2014 | Summer |
| 1 | 2014 | Spring |
| 1 | 2013 | Summer |
| 1 | 2012 | Summer |
| 2 | 2012 | Spring |
| 3 | 2011 | Summer |
| 1 - 2 | 2005 | Summer |
| 1 | 2004 | Summer |
| 1 - 2 | 2000 | Summer |
| 2 | 1999 | Summer |
| 1 - 2 | 1997 | Summer |
| 1 | 1990 | Fall |
| Skunk's Misery Complex (ON010) | ||
|---|---|---|
| Number | Year | Season |
| 1 - 2 | 2021 | Summer |
| 1 - 5 | 2021 | Spring |
| 2 | 2020 | Summer |
| 1 | 2020 | Spring |
| 1 - 2 | 2019 | Summer |
| 1 - 2 | 2018 | Summer |
| 3 | 2018 | Spring |
| 1 - 8 | 2017 | Summer |
| 1 - 3 | 2017 | Spring |
| 2 | 2016 | Summer |
| 1 - 2 | 2016 | Spring |
| 1 - 4 | 2015 | Summer |
| 1 | 2015 | Spring |
| 2 | 2014 | Fall |
| 2 | 2014 | Summer |
| 1 | 2014 | Spring |
| 1 | 2013 | Summer |
| 1 - 3 | 2012 | Summer |
| 1 | 2012 | Spring |
| 1 | 2011 | Summer |
| 1 - 2 | 2011 | Spring |
| 1 | 2010 | Spring |
| 1 | 2009 | Summer |
| 2 | 2005 | Summer |
| 2 | 2005 | Spring |
| 2 | 2005 | Winter |
| 2 | 2003 | Summer |
| 3 - 4 | 2002 | Summer |
| 1 | 2002 | Spring |
| 4 - 17 | 2001 | Summer |
| 2 | 2001 | Spring |
| 8 | 2000 | Summer |
| 1 | 1999 | Fall |
| 4 - 6 | 1999 | Summer |
| 1 - 2 | 1998 | Summer |
| 1 - 4 | 1997 | Summer |
| 1 | 1996 | Summer |
| Norfolk Forest Complex (ON009) | ||
|---|---|---|
| Number | Year | Season |
| 3 - 7 | 2021 | Summer |
| 2 | 2021 | Spring |
| 1 - 3 | 2020 | Summer |
| 1 - 2 | 2020 | Spring |
| 2 - 3 | 2019 | Summer |
| 1 - 2 | 2019 | Spring |
| 2 | 2018 | Summer |
| 1 | 2018 | Spring |
| 2 | 2017 | Summer |
| 1 - 2 | 2017 | Spring |
| 1 - 3 | 2016 | Fall |
| 2 - 7 | 2016 | Summer |
| 1 | 2016 | Spring |
| 4 | 2015 | Fall |
| 1 | 2015 | Summer |
| 1 | 2015 | Spring |
| 1 | 2014 | Fall |
| 3 | 2014 | Summer |
| 1 - 2 | 2014 | Spring |
| 2 - 3 | 2013 | Summer |
| 1 | 2013 | Spring |
| 2 - 4 | 2012 | Summer |
| 1 | 2012 | Spring |
| 2 | 2011 | Fall |
| 1 - 2 | 2011 | Summer |
| 1 | 2011 | Spring |
| 5 | 2010 | Summer |
| 1 - 3 | 2010 | Spring |
| 3 | 2009 | Fall |
| 1 | 2009 | Summer |
| 2 | 2007 | Fall |
| 1 | 2007 | Summer |
| 1 | 2006 | Spring |
| 1 - 2 | 2005 | Summer |
| 1 | 2005 | Spring |
| 1 - 2 | 2004 | Summer |
| 1 | 2004 | Spring |
| 2 | 2003 | Summer |
| 1 - 2 | 2003 | Spring |
| 1 - 2 | 2002 | Summer |
| 1 | 2002 | Spring |
| 1 - 2 | 2001 | Summer |
| 2 - 6 | 2000 | Summer |
| 1 | 2000 | Spring |
| 1 | 1999 | Spring |
| 1 - 12 | 1998 | Summer |
| 1 | 1994 | Summer |
| 1 - 2 | 1992 | Summer |
| 1 | 1991 | Summer |
| Clear Creek (ON033) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Summer |
| 1 | 2014 | Spring |
| 1 | 2011 | Summer |
| 1 | 2003 | Summer |
| 1 | 2002 | Summer |
| 3 - 4 | 2001 | Summer |
| 4 - 6 | 2000 | Summer |
| 3 - 6 | 1999 | Summer |
| 3 - 5 | 1998 | Fall |
| 3 - 10 | 1998 | Summer |
| 1 - 8 | 1997 | Summer |
| 2 | 1985 | Summer |
| Long Point Peninsula and Marshes (ON001) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Fall |
| 1 | 2021 | Summer |
| 1 | 2021 | Spring |
| 1 | 2020 | Fall |
| 1 - 2 | 2020 | Summer |
| 1 | 2020 | Spring |
| 1 - 2 | 2019 | Spring |
| 1 | 2018 | Summer |
| 1 - 2 | 2018 | Spring |
| 1 | 2017 | Fall |
| 1 - 2 | 2017 | Spring |
| 1 | 2016 | Fall |
| 1 | 2016 | Summer |
| 1 - 2 | 2016 | Spring |
| 1 | 2015 | Fall |
| 1 | 2015 | Spring |
| 1 | 2014 | Summer |
| 1 | 2014 | Spring |
| 1 | 2013 | Fall |
| 1 | 2013 | Summer |
| 1 - 2 | 2013 | Spring |
| 1 | 2012 | Summer |
| 1 - 2 | 2012 | Spring |
| 1 | 2011 | Summer |
| 1 - 2 | 2011 | Spring |
| 1 | 2010 | Summer |
| 1 | 2010 | Spring |
| 1 | 2009 | Spring |
| 1 | 2008 | Summer |
| 1 | 2007 | Summer |
| 1 - 3 | 2007 | Spring |
| 1 | 2006 | Fall |
| 1 | 2006 | Spring |
| 1 | 2005 | Fall |
| 1 | 2005 | Summer |
| 1 | 2005 | Spring |
| 2 | 2004 | Summer |
| 1 | 2004 | Spring |
| 1 | 2001 | Fall |
| 1 | 2001 | Spring |
| 1 | 2000 | Summer |
| 1 | 2000 | Spring |
| 1 | 1999 | Summer |
| 1 | 1999 | Spring |
| 1 | 1997 | Fall |
| 1 | 1997 | Summer |
| 1 | 1996 | Summer |
| 1 | 1995 | Spring |
| 1 | 1994 | Spring |
| 1 | 1993 | Fall |
| 1 | 1992 | Fall |
| 1 - 10 | 1992 | Summer |
| 1 | 1991 | Fall |
| 1 | 1991 | Spring |
| 1 | 1990 | Fall |
| 1 | 1990 | Summer |
| Greater Rondeau Area (ON007) | ||
|---|---|---|
| Number | Year | Season |
| 3 - 6 | 2021 | Summer |
| 3 - 4 | 2021 | Spring |
| 1 | 2020 | Fall |
| 2 - 3 | 2020 | Summer |
| 1 - 4 | 2020 | Spring |
| 1 | 2019 | Fall |
| 2 - 3 | 2019 | Summer |
| 1 - 2 | 2019 | Spring |
| 2 - 3 | 2018 | Summer |
| 1 - 3 | 2018 | Spring |
| 1 | 2017 | Fall |
| 1 - 2 | 2017 | Summer |
| 1 - 4 | 2017 | Spring |
| 3 - 6 | 2016 | Summer |
| 2 - 4 | 2016 | Spring |
| 1 | 2015 | Fall |
| 1 - 6 | 2015 | Summer |
| 2 | 2015 | Spring |
| 1 - 2 | 2014 | Summer |
| 1 | 2014 | Spring |
| 1 - 2 | 2013 | Summer |
| 1 | 2013 | Spring |
| 1 | 2012 | Summer |
| 1 | 2012 | Spring |
| 1 | 2011 | Summer |
| 2 | 2010 | Spring |
| 1 | 2009 | Spring |
| 1 | 2008 | Spring |
| 1 | 2007 | Fall |
| 1 | 2007 | Spring |
| 1 - 2 | 2005 | Summer |
| 1 | 2005 | Spring |
| 1 - 3 | 2004 | Summer |
| 1 | 2004 | Spring |
| 1 | 2003 | Summer |
| 1 - 2 | 2003 | Spring |
| 1 | 2002 | Summer |
| 1 | 2001 | Spring |
| 1 | 2000 | Spring |
| 2 | 1999 | Spring |
| 1 | 1998 | Spring |
| 1 - 8 | 1997 | Summer |
| 1 | 1997 | Spring |
| 1 | 1996 | Spring |
| 1 | 1992 | Summer |
| 2 | 1991 | Spring |
| 3 | 1990 | Summer |
| 1 | 1990 | Spring |
| Southwest Elgin Forest Complex (ON048) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Summer |
| 1 | 2019 | Summer |
| 1 | 2017 | Summer |
| 1 | 2014 | Summer |
| 1 | 2014 | Spring |
| 1 | 2004 | Spring |
| 1 - 7 | 2003 | Summer |
| 1 - 3 | 2002 | Summer |
| 1 - 4 | 2001 | Summer |
| 1 - 2 | 1998 | Summer |
| 2 | 1990 | Summer |
| Point Pelee (ON006) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Summer |
| 1 - 2 | 2021 | Spring |
| 1 - 2 | 2019 | Spring |
| 1 | 2018 | Fall |
| 1 - 2 | 2018 | Spring |
| 1 | 2017 | Spring |
| 1 | 2016 | Spring |
| 1 | 2015 | Spring |
| 1 - 2 | 2014 | Spring |
| 1 | 2013 | Spring |
| 1 | 2012 | Fall |
| 1 | 2012 | Spring |
| 1 - 5 | 2011 | Spring |
| 1 | 2010 | Spring |
| 1 | 2009 | Spring |
| 1 | 2008 | Spring |
| 1 | 2007 | Spring |
| 1 | 2006 | Summer |
| 1 | 2006 | Spring |
| 1 | 2005 | Summer |
| 1 | 2005 | Spring |
| 1 | 2004 | Spring |
| 1 | 2003 | Spring |
| 1 | 2002 | Fall |
| 1 | 2002 | Summer |
| 1 | 2002 | Spring |
| 1 | 2001 | Summer |
| 1 | 2001 | Spring |
| 1 | 2000 | Spring |
| 1 | 1999 | Spring |
| 1 | 1998 | Summer |
| 1 | 1998 | Spring |
| 1 | 1997 | Summer |
| 1 | 1997 | Spring |
| 1 | 1996 | Summer |
| 1 | 1996 | Spring |
| 1 - 2 | 1995 | Summer |
| 1 - 2 | 1995 | Spring |
| 1 - 3 | 1993 | Summer |
| 1 | 1993 | Spring |
| 1 - 2 | 1992 | Summer |
| 1 | 1992 | Spring |
| 1 | 1991 | Summer |
| 1 | 1991 | Spring |
| 1 | 1990 | Spring |
| Springwater Conservation Area (ON028) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2004 | Summer |
| 0 | 1997 | Summer |
| 2 | 1996 | Summer |
| 1 | 1995 | Summer |
| 2 | 1991 | Summer |
| 2 | 1990 | Summer |
| 1 | 1989 | Summer |
| 2 - 4 | 1988 | Summer |
| Pelee Island Natural Areas (ON013) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Summer |
| 1 | 2021 | Spring |
| 1 | 2018 | Summer |
| 1 | 2018 | Spring |
| 2 | 2017 | Summer |
| 1 | 2017 | Spring |
| 1 | 2016 | Summer |
| 1 | 2016 | Spring |
| 1 | 2014 | Summer |
| 1 | 2014 | Spring |
| 1 | 2013 | Summer |
| 1 | 2013 | Spring |
| 1 - 2 | 2012 | Spring |
| 1 - 3 | 2011 | Spring |
| 1 - 2 | 2010 | Spring |
| 1 | 2009 | Spring |
| 1 | 2008 | Summer |
| 1 | 2008 | Spring |
| 1 | 2007 | Summer |
| 1 | 2007 | Spring |
| 1 | 2006 | Summer |
| 2 | 2005 | Summer |
| 1 | 1993 | Spring |
| ? | ? | Other |
| Eastern Lake St. Clair (ON012) | ||
|---|---|---|
| Number | Year | Season |
| 2 | 2021 | Spring |
| 2 | 1986 | Summer |
| Leslie Street Spit (ON038) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2020 | Fall |
| 1 | 2019 | Spring |
| 1 | 2016 | Spring |
| 2 | 2009 | Summer |
| Little Otter Creek Complex (ON044) | ||
|---|---|---|
| Number | Year | Season |
| 1 - 2 | 2005 | Summer |
| Point Abino (ON058) | ||
|---|---|---|
| Number | Year | Season |
| 0 | 1999 | Summer |
| 2 | 1995 | Summer |
| 2 | 1985 | Summer |
| 1 | 1975 | Summer |
| West End of Lake Ontario (ON022) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Spring |
| 1 | 2020 | Fall |
| 1 | 2020 | Spring |
| 1 | 2019 | Spring |
| 1 | 2018 | Spring |
| 1 | 2016 | Fall |
| 1 | 2015 | Spring |
| 1 | 2014 | Spring |
| 1 | 2013 | Spring |
| 1 | 2009 | Spring |
| 2 | 2005 | Spring |
| 1 | 2000 | Spring |
| Beamer Conservation Area (ON023) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 1996 | Summer |
| Dundas Valley and Dundas Marsh (ON005) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2020 | Spring |
| 1 | 2018 | Summer |
| 1 | 2018 | Spring |
| 1 | 2013 | Summer |
| 1 | 2001 | Summer |
| 1 | 1997 | Summer |
| 1 | 1994 | Summer |
| 1 | 1992 | Summer |
| 1 | 1990 | Spring |
| Holiday Beach / Big Creek Conservation Area (ON034) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2020 | Spring |
| 1 | 2019 | Spring |
| 1 | 2017 | Spring |
| 1 | 2016 | Fall |
| Lac Deschênes-Ottawa River (ON112) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2007 | Summer |
| 1 | 2002 | Spring |
| Niagara River Corridor (ON002) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2016 | Summer |
| Prince Edward County South Shore (ON003) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 1999 | Spring |
| 1 | 1997 | Spring |
| 1 | 1995 | Spring |
| 1 | 1994 | Spring |
| 1 | 1993 | Spring |
| 1 | 1992 | Spring |
| 1 | 1991 | Spring |
| Twelve Mile Creek Headwaters (ON021) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2003 | Summer |
| Wildwood Gull Roost (ON045) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 1993 | Fall |