| Titre : | Incidence of artifact ingestion in Mute Swans and Tundra Swans on the lower Great Lakes, Canada |
| Auteurs : | Jenna E. Bowen, Auteur ; Scott A. Petrie, Auteur |
| Type de document : | Article |
| Dans : | Ardea (95(1) SPR 2007) |
| Article en page(s) : | 135-142 |
| Résumé : | Although lead poisoning is common in swans, no information exists on the prevalence of lead artifact ingestion in swans using the lower Great lakes (LGL). We examined artifact ingestion (lead and non-toxic) in Mute Swans Cygnus olor and Tundra Swans Cygnus columbianus collected on the LGL in Ontario (1999-2003) following the 1999 ban on use of lead shot for waterfowl hunting in Canada. A larger proportion of Mute Swans (19.8% of 243 birds) contained artifacts than did Tundra Swans (6.5% of |



