Henslow's Sparrow
Scientific Name: Centronyx henslowii
Thresholds:
- Point Pelee (ON006)16 (max.)
- Carden Alvar (ON040)3 (max.)
- Amherst Island (ON062)2 (max.)
- Cabot Head (ON099)2 (max.)
- Eastern Lake St. Clair (ON012)2 (max.)
- Luther Marsh (ON059)2 (max.)
- Napanee Limestone Plain (ON152)2 (max.)
- Prince Edward County South Shore (ON003)2 (max.)
- Big Piskwanish Point (ON140)1 (max.)
- Greater Rondeau Area (ON007)1 (max.)
- Long Point Peninsula and Marshes (ON001)1 (max.)
- Longridge Point & Associated Coastline (ON124)1 (max.)
- Matchedash Bay (ON035)1 (max.)
- Norfolk Forest Complex (ON009)1 (max.)
- Pei lay sheesh kow (ON157)1 (max.)
- Pelee Island Natural Areas (ON013)1 (max.)
- Southwest Elgin Forest Complex (ON048)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.
Regional SAR
This threshold is static and standardized: Passeriformes (e.g. perching/songbirds) = 90 individuals (or 30 pairs); non-Passeriformes = 30 individuals (or 10 pairs). Only species listed by the IUCN as Vulnerable are presently eligible.
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.
| Point Pelee (ON006) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Spring |
| 1 | 2017 | Spring |
| 1 | 2016 | Spring |
| 1 | 2015 | Spring |
| 1 - 2 | 2014 | Spring |
| 1 | 2013 | Summer |
| 1 | 2013 | Spring |
| 1 | 2012 | Spring |
| 1 | 2011 | Spring |
| 1 | 2010 | Spring |
| 1 | 2009 | Spring |
| 1 | 2008 | Spring |
| 1 | 2007 | Spring |
| 1 | 2004 | Spring |
| 1 | 2002 | Spring |
| 1 - 2 | 1999 | Spring |
| 1 - 6 | 1997 | Spring |
| 1 - 11 | 1996 | Spring |
| 1 | 1993 | Spring |
| 1 | 1992 | Spring |
| 1 | 1991 | Spring |
| 1 | 1990 | Spring |
| 16 | 1986 | Spring |
| Carden Alvar (ON040) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2012 | Summer |
| 1 | 2009 | Summer |
| 1 | 2007 | Spring |
| 1 | 2006 | Summer |
| 1 | 2005 | Summer |
| 1 | 2001 | Summer |
| 1 | 1996 | Spring |
| 3 | 1994 | Summer |
| Amherst Island (ON062) | ||
|---|---|---|
| Number | Year | Season |
| 2 | 1985 | Summer |
| Cabot Head (ON099) | ||
|---|---|---|
| Number | Year | Season |
| 2 | 1995 | Summer |
| Eastern Lake St. Clair (ON012) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2003 | Summer |
| 2 | 1986 | Summer |
| Luther Marsh (ON059) | ||
|---|---|---|
| Number | Year | Season |
| 2 | 1985 | Summer |
| 2 | 1935 | Summer |
| Napanee Limestone Plain (ON152) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2002 | Summer |
| 1 | 2001 | Summer |
| 1 | 1998 | Summer |
| 1 | 1996 | Summer |
| 1 - 2 | 1995 | Summer |
| 1 | 1992 | Summer |
| 1 | 1990 | Summer |
| Prince Edward County South Shore (ON003) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 1998 | Fall |
| 2 | 1991 | Spring |
| 1 | 1990 | Fall |
| 2 | 1975 | Spring |
| Big Piskwanish Point (ON140) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2009 | Summer |
| Greater Rondeau Area (ON007) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 1997 | Spring |
| Long Point Peninsula and Marshes (ON001) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2021 | Spring |
| 1 | 2011 | Spring |
| 1 | 2004 | Fall |
| 1 | 1993 | Spring |
| Longridge Point & Associated Coastline (ON124) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2009 | Summer |
| Matchedash Bay (ON035) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 1998 | Summer |
| Norfolk Forest Complex (ON009) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2019 | Fall |
| 1 | 2019 | Summer |
| 1 | 2005 | Spring |
| Pei lay sheesh kow (ON157) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2009 | Summer |
| Pelee Island Natural Areas (ON013) | ||
|---|---|---|
| Number | Year | Season |
| 1 | 2019 | Spring |
| 1 | 2011 | Spring |
| 1 | 1997 | Summer |
| ? | ? | Spring |
| Southwest Elgin Forest Complex (ON048) | ||
|---|---|---|
| Number | Year | Season |
| 1 - 3 | 2021 | Summer |
| 1 | 2015 | Spring |
| 1 | 2014 | Spring |