| ZICO |
Hamilton Harbour Waterbird Colonies
Hamilton, Ontario |
| Résumé de Site |
| ON020 |
Latitude
Longitude |
43,287° N
79,804° O |
Altitude
Superficie |
75 - 78 m
14,23 km² |
Habitats:
lac d'eau douce, inconnu
|
Usages:
Conservation de la nature et recherche, Terrain urbain, industriel ou servant au transport
|
Menaces potencielles ou existantes:
dérangement des oiseaux, interactions avec les espèces indigènes ou maladie, pollution industrielle
|
| Catégorie: significative au niveau mondial: concentrations d'oiseaux aquatiques ou marins coloniaux, significative au niveau national: espèce(s) grégaire(s) |
| Status de protection: |
|
Description du site
Hamilton Harbour is located at the extreme western end of Lake Ontario. It is separated from the Lake by a large sandbar (developed with highways, industries, and housing), with water exchange occurring through the Burlington Canal. The waterbird colonies are located at east end of the harbour, primarily in an area known as Eastport, as well as in the harbour?s northeast corner. Eastport is comprised of three partially developed piers (numbers 25, 26, and 27) that have been created over the past 35 years by the Hamilton Harbour Commission?s filling operations. Eastern Cottonwood has become established on some of the piers, although in recent years it has died back (probably due to the acidic feces from nesting Double-crested Cormorants). In general, the piers at Eastport are flat with some elevated mounds (less than 2 m), and herbaceous vegetation such as celandines, mustards, and nettles. Two small artificial islands (Farre and Neare Islands), which are comprised of coarse rocks and patches of sparse vegetation, are located in the northeast corner of the harbour. They were built in the 1920s and supported hydro poles until they were removed in 1983. Three additional nesting islands were constructed in this area during the winter of 1995-1996. They are located directly north of the Canadian Centre for Inland Waters and are called North, Central and South islands.
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|
IBA Criteria |
| Espèce↓ T | A | I |
Liens |
Date |
Saison |
Nombre |
G |
C |
N |
| Fuligule milouinan |
|
2009 |
FA |
4 814 |
|
|
|
| Fuligule milouinan |
|
1993 - 2001 |
SP |
5 000 |
|
|
|
| Fuligule milouinan |
|
2000 - 2010 |
WI |
4 792 - 20 000 |
✔ |
✔ |
|
| Goéland à bec cerclé |
|
1995 |
SP |
80 000 |
✔ |
✔ |
|
| Goéland à bec cerclé |
|
1990 |
SU |
79 242 |
✔ |
✔ |
|
| Harelde kakawi |
|
2009 |
WI |
10 000 |
|
✔ |
|
| Mouette pygmée |
|
1992 |
SP |
2 |
|
✔ |
|
| Mouette pygmée |
|
2014 |
SU |
3 |
|
✔ |
|
| Pie-grièche migratrice |
|
1996 - 2012 |
SP |
1 |
|
|
✔ |
| Sterne caspienne |
|
1997 |
SU |
798 |
|
|
|
|
Note: les espèces en gras dans ce tableau indiquent que le nombre maximum d'oiseaux à ce site excède au moins l'un des seuils de population (national, continental ou global). Il se peut que le site ne se qualifie pas à ce niveau de ZICO se nombre maximum correspondait à une observation exceptionnelle ou à une donnée historique.
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