Black-bellied Whistling-Duck

January February March April May June July August September October November December
Week 1 Frequency: 2.4% Week 2 Frequency: 2.7% Week 3 Frequency: 3.3% Week 4 Frequency: 1.2% Week 1 Frequency: 2% Week 2 Frequency: 2.5% Week 3 Frequency: 2.1% Week 4 Frequency: 3% Week 1 Frequency: 1% Week 2 Frequency: 0.8% Week 3 Frequency: 0.6% Week 4 Frequency: 5.1% Week 1 Frequency: 8.3% Week 2 Frequency: 7.6% Week 3 Frequency: 11% Week 4 Frequency: 12.7% Week 1 Frequency: 11.7% Week 2 Frequency: 13.7% Week 3 Frequency: 11.9% Week 4 Frequency: 14.4% Week 1 Frequency: 13.5% Week 2 Frequency: 11.4% Week 3 Frequency: 20.9% Week 4 Frequency: 11.5% Week 1 Frequency: 16.7% Week 2 Frequency: 17.9% Week 3 Frequency: 17.5% Week 4 Frequency: 16.9% Week 1 Frequency: 7.9% Week 2 Frequency: 15% Week 3 Frequency: 19.3% Week 4 Frequency: 9% Week 1 Frequency: 5.7% Week 2 Frequency: 4.6% Week 3 Frequency: 6.5% Week 4 Frequency: 2.9% Week 1 Frequency: 4.1% Week 2 Frequency: 3.5% Week 3 Frequency: 5.7% Week 4 Frequency: 5.5% Week 1 Frequency: 9.4% Week 2 Frequency: 2.7% Week 3 Frequency: 3.3% Week 4 Frequency: 2.7% Week 1 Frequency: 3.9% Week 2 Frequency: 2.7% Week 3 Frequency: 3.2% Week 4 Frequency: 5.1%
Weekly frequency data

Last seen: 22 Jan 2020 by Erik Johnson

© James Holmes
© James (Jim) Holmes
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Fulvous Whistling-Duck

January February March April May June July August September October November December
Week 1 Frequency: 1.1% Week 2 Frequency: 0.9% Week 3 Frequency: 0.7% Week 4 Frequency: 0.6% Week 1 Frequency: 2% Week 2 Frequency: 1.5% Week 3 Frequency: 1.7% Week 4 Frequency: 3.6% Week 1 Frequency: 1.5% Week 2 Frequency: 5% Week 3 Frequency: 6.3% Week 4 Frequency: 7.1% Week 1 Frequency: 7.2% Week 2 Frequency: 6.9% Week 3 Frequency: 7.6% Week 4 Frequency: 8.8% Week 1 Frequency: 10.6% Week 2 Frequency: 7.3% Week 3 Frequency: 8.9% Week 4 Frequency: 9.9% Week 1 Frequency: 8.7% Week 2 Frequency: 12.4% Week 3 Frequency: 9.3% Week 4 Frequency: 11.5% Week 1 Frequency: 13.3% Week 2 Frequency: 20.2% Week 3 Frequency: 20% Week 4 Frequency: 26.8% Week 1 Frequency: 10.5% Week 2 Frequency: 8.3% Week 3 Frequency: 15.8% Week 4 Frequency: 7.6% Week 1 Frequency: 6.2% Week 2 Frequency: 6.1% Week 3 Frequency: 7.1% Week 4 Frequency: 3.9% Week 1 Frequency: 2.5% Week 2 Frequency: 1.3% Week 3 Frequency: 2.6% Week 4 Frequency: 3.5% Week 1 Frequency: 6.7% Week 2 Frequency: 3.6% Week 3 Frequency: 2.8% Week 4 Frequency: 0.4% Week 1 Frequency: 2.3% Week 2 Frequency: 0.9% Week 3 Frequency: 1.6% Week 4 Frequency: 0.9%
Weekly frequency data

Last seen: 14 Dec 2019 by Erik Johnson

© David Hollie
© James Holmes
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Snow Goose

January February March April May June July August September October November December
Week 1 Frequency: 37.3% Week 2 Frequency: 37.2% Week 3 Frequency: 31.9% Week 4 Frequency: 22.7% Week 1 Frequency: 26.8% Week 2 Frequency: 26.4% Week 3 Frequency: 27.3% Week 4 Frequency: 26.9% Week 1 Frequency: 13.7% Week 2 Frequency: 9.5% Week 3 Frequency: 6.3% Week 4 Frequency: 5.4% Week 1 Frequency: 4.8% Week 2 Frequency: 3.4% Week 3 Frequency: 1.8% Week 4 Frequency: 0.7% Week 1 Frequency: 0.5% Week 2 Frequency: 0.8% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0.5% Week 1 Frequency: 0.5% Week 2 Frequency: 0.4% Week 3 Frequency: 0.5% Week 4 Frequency: 5.3% Week 1 Frequency: 8.8% Week 2 Frequency: 25% Week 3 Frequency: 28.8% Week 4 Frequency: 29.6% Week 1 Frequency: 41.1% Week 2 Frequency: 30.9% Week 3 Frequency: 53.3% Week 4 Frequency: 33.9%
Weekly frequency data

Last seen: 23 Jan 2020 by William Matthews

© Van Remsen
© Paul Marvin

Ross's Goose

January February March April May June July August September October November December
Week 1 Frequency: 11.5% Week 2 Frequency: 10.2% Week 3 Frequency: 9.2% Week 4 Frequency: 8.1% Week 1 Frequency: 6.7% Week 2 Frequency: 3.6% Week 3 Frequency: 4.5% Week 4 Frequency: 4.8% Week 1 Frequency: 2.5% Week 2 Frequency: 0% Week 3 Frequency: 0.9% Week 4 Frequency: 1.4% Week 1 Frequency: 1.2% Week 2 Frequency: 0.3% Week 3 Frequency: 0.2% Week 4 Frequency: 0.1% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0.6% Week 1 Frequency: 2.7% Week 2 Frequency: 4.9% Week 3 Frequency: 7% Week 4 Frequency: 5.8% Week 1 Frequency: 10.9% Week 2 Frequency: 9% Week 3 Frequency: 18.5% Week 4 Frequency: 6.9%
Weekly frequency data

Last seen: 23 Jan 2020 by William Matthews

© Tom Johnson
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Greater White-fronted Goose

January February March April May June July August September October November December
Week 1 Frequency: 30.8% Week 2 Frequency: 32.7% Week 3 Frequency: 31.2% Week 4 Frequency: 20.4% Week 1 Frequency: 23.2% Week 2 Frequency: 24.4% Week 3 Frequency: 18.6% Week 4 Frequency: 18.6% Week 1 Frequency: 11.7% Week 2 Frequency: 3.7% Week 3 Frequency: 1.9% Week 4 Frequency: 1.7% Week 1 Frequency: 2.7% Week 2 Frequency: 1.3% Week 3 Frequency: 0.5% Week 4 Frequency: 0.4% Week 1 Frequency: 0.2% Week 2 Frequency: 0.4% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0.5% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 1% Week 1 Frequency: 1% Week 2 Frequency: 3.5% Week 3 Frequency: 3.6% Week 4 Frequency: 12.4% Week 1 Frequency: 16.7% Week 2 Frequency: 23.2% Week 3 Frequency: 20% Week 4 Frequency: 24.3% Week 1 Frequency: 39.5% Week 2 Frequency: 24.7% Week 3 Frequency: 41.6% Week 4 Frequency: 28.5%
Weekly frequency data

Last seen: 23 Jan 2020 by William Matthews

© Van Remsen
© Paul Marvin
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Brant

January February March April May June July August September October November December
Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0.2% Week 4 Frequency: 0%
Weekly frequency data

Last seen: 17 Dec 1999 by David Muth

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Black Rail

© thomas finnie
© Cameron Rutt
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Whooping Crane

© Phillip Wallace
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