Ontario rare bird alert for the week of October 9. Species mentioned (boldface indicates species on the OBRC review list): Ross's Goose (Hamilton, York, Thunder Bay, Rainy River) Greater White-fronted Goose (Huron) BARNACLE GOOSE (Ottawa) Eurasian Wigeon (Chatham-Kent) WESTERN GREBE (Hamilton) Long-tailed Jaeger (Hamilton) Sabine's Gull (Hamilton) SLATY-BACKED GULL (Toronto) Pacific Loon (Simcoe) BROWN BOOBY (Hamilton) Glossy/White-faced Ibis (Niagara) Black Vulture (Niagara) Swainson's Hawk (Essex) BLACK-BILLED MAGPIE (Algoma) Yellow-headed Blackbird (Algoma) Palm Warbler (Yellow) (Chatham-Kent) Ross's Goose (Hamilton): Two juveniles were at Bayfront Park in Hamilton October 12-15. Ross's Goose (York): One adult was at Reesor Pond in Markham October 13. Ross's Goose (Thunder Bay): Three birds were in Thunder Bay on October 9. Ross's Goose (Rainy River): Two birds were at Emo Sewage Lagoons on October 9. Greater White-fronted Goose (Huron): One bird was at Exeter Sewage Lagoons on October 14. BARNACLE GOOSE (Ottawa): One bird was found at Andrew Haydon Park on October 10 and then seen at a few other nearby locations October 11 and 12. Eurasian Wigeon (Chatham-Kent): A male was on Rondeau Bay off Erieau on October 13. WESTERN GREBE (Hamilton): One bird was off Stoney Creek in the vicinity of Sayer's Park October 12-13. Long-tailed Jaeger (Hamilton): One bird was reported off Stoney Creek on October 13. Sabine's Gull (Lambton): One bird was seen briefly at Forest Sewage Lagoons on October 9. SLATY-BACKED GULL (Toronto): The continuing bird was reported at Sunnyside Beach on October 14. Pacific Loon (Simcoe): At least one bird was reported from various locations along the Barrie waterfront October 9-15. BROWN BOOBY (Hamilton): After an absence last week, east winds brought the return of the booby to the wave tower off Van Wagner's Beach with reports October 11, 12, and 13. Glossy/White-faced Ibis (Niagara): A single bird was seen briefly at Niagara-on-the-Lake on October 11. The exact identification is still being debated. Black Vulture (Niagara): Up to three birds were reported this week at Queenston on October 10. Swainson's Hawk (Essex): One bird was seen over Leamington on October 13. BLACK-BILLED MAGPIE (Algoma): The very long-staying bird at Echo Lake was reported October 12. Yellow-headed Blackbird (Algoma): At least two birds continued near Pumpkin Point this week with a report on October 10. Palm Warbler (Yellow) (Chatham-Kent): One bird was photographed near Wallaceburg on October 11. Report compiled by Mike Burrell