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Illustrated Checklist

January February March April May June July August September October November December
Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Insufficient data Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:5.6% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0%
Weekly frequency data

Last seen: 11 Nov 2016 by mc coburn

© mc coburn
January February March April May June July August September October November December
Week1Frequency:25.8% Week2Frequency:25% Week3Frequency:0% Week4Frequency:12% Week1Frequency:11.1% Week2Frequency:33.3% Week3Frequency:21.7% Week4Frequency:69.2% Week1Frequency:75% Week2Frequency:100% Week3Frequency:100% Week4Frequency:100% Week1Frequency:100% Week2Frequency:100% Week3Frequency:94.1% Week4Frequency:93.8% Week1Frequency:66.7% Week2Frequency:57.1% Week3Frequency:66.7% Week4Frequency:33.3% Week1Frequency:71.4% Week2Frequency:50% Week3Frequency:100% Week4Frequency:66.7% Week1Frequency:66.7% Week2Frequency:100% Week3Frequency:100% Week4Insufficient data Week1Frequency:100% Week2Frequency:0.1% Week3Frequency:75% Week4Frequency:100% Week1Frequency:100% Week2Frequency:100% Week3Frequency:50% Week4Frequency:50% Week1Frequency:75% Week2Frequency:54.5% Week3Frequency:41.7% Week4Frequency:61.5% Week1Frequency:80% Week2Frequency:61.1% Week3Frequency:100% Week4Frequency:66.7% Week1Frequency:61.5% Week2Frequency:44.4% Week3Frequency:0.1% Week4Frequency:29.4%
Weekly frequency data

Last seen: 24 Feb 2024 by Dave Szmyr

© Desmond J MacNeal
January February March April May June July August September October November December
Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:8% Week1Frequency:0% Week2Frequency:5.6% Week3Frequency:17.4% Week4Frequency:0% Week1Frequency:5% Week2Frequency:6.7% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:12.5% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Insufficient data Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:50% Week2Frequency:0% Week3Frequency:16.7% Week4Frequency:0% Week1Frequency:0% Week2Frequency:9.1% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0.1% Week2Frequency:0% Week3Frequency:12.5% Week4Frequency:11.1% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0%
Weekly frequency data

Last seen: 29 Apr 2023 by Tim Ward

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January February March April May June July August September October November December
Week1Frequency:48.4% Week2Frequency:25% Week3Frequency:37.5% Week4Frequency:16% Week1Frequency:44.4% Week2Frequency:22.2% Week3Frequency:34.8% Week4Frequency:61.5% Week1Frequency:50% Week2Frequency:26.7% Week3Frequency:25% Week4Frequency:14.3% Week1Frequency:21.4% Week2Frequency:18.2% Week3Frequency:11.8% Week4Frequency:12.5% Week1Frequency:16.7% Week2Frequency:21.4% Week3Frequency:33.3% Week4Frequency:0.1% Week1Frequency:42.9% Week2Frequency:50% Week3Frequency:33.3% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Insufficient data Week1Frequency:0% Week2Frequency:0% Week3Frequency:50% Week4Frequency:0% Week1Frequency:50% Week2Frequency:16.7% Week3Frequency:66.7% Week4Frequency:25% Week1Frequency:25% Week2Frequency:45.5% Week3Frequency:41.7% Week4Frequency:46.2% Week1Frequency:40% Week2Frequency:44.4% Week3Frequency:37.5% Week4Frequency:50% Week1Frequency:23.1% Week2Frequency:33.3% Week3Frequency:33.3% Week4Frequency:11.8%
Weekly frequency data

Last seen: 24 Feb 2024 by Dave Szmyr

© Geordie Ray
January February March April May June July August September October November December
Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:9.1% Week3Frequency:11.8% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Insufficient data Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:15.4% Week1Frequency:20% Week2Frequency:0% Week3Frequency:0% Week4Frequency:16.7% Week1Frequency:0% Week2Frequency:11.1% Week3Frequency:33.3% Week4Frequency:0%
Weekly frequency data

Last seen: 4 Nov 2023 by Josiah Vandenberg

© Josiah Vandenberg
January February March April May June July August September October November December
Week1Frequency:3.2% Week2Frequency:0% Week3Frequency:18.8% Week4Frequency:8% Week1Frequency:0% Week2Frequency:5.6% Week3Frequency:13% Week4Frequency:15.4% Week1Frequency:10% Week2Frequency:33.3% Week3Frequency:25% Week4Frequency:14.3% Week1Frequency:28.6% Week2Frequency:36.4% Week3Frequency:47.1% Week4Frequency:37.5% Week1Frequency:66.7% Week2Frequency:50% Week3Frequency:50% Week4Frequency:100% Week1Frequency:28.6% Week2Frequency:0% Week3Frequency:100% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Insufficient data Week1Frequency:0% Week2Frequency:0% Week3Frequency:75% Week4Frequency:100% Week1Frequency:50% Week2Frequency:33.3% Week3Frequency:50% Week4Frequency:50% Week1Frequency:50% Week2Frequency:45.5% Week3Frequency:25% Week4Frequency:23.1% Week1Frequency:10% Week2Frequency:0.1% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0%
Weekly frequency data

Last seen: 25 Oct 2023 by Chase Moser

© Josiah Vandenberg

Hybrids

Mallard x American Black Duck (hybrid)

Last seen: 8 Jan 2023 by Anthony Glenesk

© Roy Chatburn

Herring x Great Black-backed Gull (hybrid)

Last seen: 29 Dec 2020 by Henrique Pacheco

© Henrique Pacheco

Great Black-backed x Glaucous Gull (hybrid)

Last seen: 23 Dec 2020 by Brandon Holden

© Brandon Holden

Additional taxa

gull sp.

Last seen: 22 Feb 2024 by Sarah Sharp

© Anthony Glenesk