Black-bellied Whistling-Duck

January February March April May June July August September October November December
Week 1 Frequency: 11% Week 2 Frequency: 9% Week 3 Frequency: 10.9% Week 4 Frequency: 11.3% Week 1 Frequency: 12.3% Week 2 Frequency: 10.6% Week 3 Frequency: 11.7% Week 4 Frequency: 12.6% Week 1 Frequency: 15.7% Week 2 Frequency: 25.5% Week 3 Frequency: 33.8% Week 4 Frequency: 42.7% Week 1 Frequency: 48.9% Week 2 Frequency: 52.1% Week 3 Frequency: 53.3% Week 4 Frequency: 52.7% Week 1 Frequency: 55.3% Week 2 Frequency: 54.8% Week 3 Frequency: 55.5% Week 4 Frequency: 48% Week 1 Frequency: 49.9% Week 2 Frequency: 49.5% Week 3 Frequency: 47% Week 4 Frequency: 43.3% Week 1 Frequency: 47.4% Week 2 Frequency: 41.3% Week 3 Frequency: 44.7% Week 4 Frequency: 41.4% Week 1 Frequency: 41% Week 2 Frequency: 40.5% Week 3 Frequency: 37.6% Week 4 Frequency: 36.7% Week 1 Frequency: 34.2% Week 2 Frequency: 30.1% Week 3 Frequency: 30.4% Week 4 Frequency: 35.7% Week 1 Frequency: 32.1% Week 2 Frequency: 29.7% Week 3 Frequency: 31.5% Week 4 Frequency: 28.6% Week 1 Frequency: 29.9% Week 2 Frequency: 27.7% Week 3 Frequency: 21.8% Week 4 Frequency: 18.6% Week 1 Frequency: 21.2% Week 2 Frequency: 19% Week 3 Frequency: 15.2% Week 4 Frequency: 14.6%
Weekly frequency data

Last seen: 6 Aug 2020 by Pat Heirs

© Davey Walters
© Steve Myers

Fulvous Whistling-Duck

January February March April May June July August September October November December
Week 1 Frequency: 3.2% Week 2 Frequency: 2.3% Week 3 Frequency: 2.7% Week 4 Frequency: 2.4% Week 1 Frequency: 2.5% Week 2 Frequency: 2.2% Week 3 Frequency: 3.1% Week 4 Frequency: 3.7% Week 1 Frequency: 4.2% Week 2 Frequency: 5% Week 3 Frequency: 4.7% Week 4 Frequency: 9.2% Week 1 Frequency: 10% Week 2 Frequency: 9.9% Week 3 Frequency: 11.9% Week 4 Frequency: 11.7% Week 1 Frequency: 7.6% Week 2 Frequency: 7.2% Week 3 Frequency: 6.3% Week 4 Frequency: 4.7% Week 1 Frequency: 4.4% Week 2 Frequency: 6.1% Week 3 Frequency: 5.8% Week 4 Frequency: 6.1% Week 1 Frequency: 7.9% Week 2 Frequency: 6.3% Week 3 Frequency: 7.3% Week 4 Frequency: 8.8% Week 1 Frequency: 8.8% Week 2 Frequency: 8.3% Week 3 Frequency: 7.2% Week 4 Frequency: 8.5% Week 1 Frequency: 6.7% Week 2 Frequency: 3.6% Week 3 Frequency: 3.7% Week 4 Frequency: 2.8% Week 1 Frequency: 1.9% Week 2 Frequency: 3% Week 3 Frequency: 3.7% Week 4 Frequency: 2.7% Week 1 Frequency: 7.7% Week 2 Frequency: 9% Week 3 Frequency: 4.4% Week 4 Frequency: 3.5% Week 1 Frequency: 3.7% Week 2 Frequency: 4.8% Week 3 Frequency: 4% Week 4 Frequency: 5.4%
Weekly frequency data

Last seen: 6 Aug 2020 by Pat Heirs

© Joel Gilb
© Paul Marvin

Snow Goose

January February March April May June July August September October November December
Week 1 Frequency: 2.6% Week 2 Frequency: 2.1% Week 3 Frequency: 2.8% Week 4 Frequency: 2.7% Week 1 Frequency: 2.2% Week 2 Frequency: 1.5% Week 3 Frequency: 1.2% Week 4 Frequency: 1.1% Week 1 Frequency: 0.2% Week 2 Frequency: 0.4% Week 3 Frequency: 0.1% Week 4 Frequency: 0.1% Week 1 Frequency: <0.1% Week 2 Frequency: 0% Week 3 Frequency: 0.1% 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: 0.1% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0.5% Week 4 Frequency: 1% Week 1 Frequency: 0.8% Week 2 Frequency: 2.4% Week 3 Frequency: 1% Week 4 Frequency: 2.6% Week 1 Frequency: 3.3% Week 2 Frequency: 2.8% Week 3 Frequency: 3.3% Week 4 Frequency: 3.6%
Weekly frequency data

Last seen: 15 Apr 2020 by Jenna Rektorik

© Dorian Anderson
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Ross's Goose

January February March April May June July August September October November December
Week 1 Frequency: 0.5% Week 2 Frequency: 0.3% Week 3 Frequency: 0.3% Week 4 Frequency: 0.6% Week 1 Frequency: 0.3% Week 2 Frequency: 0.2% Week 3 Frequency: 0.2% Week 4 Frequency: 0.2% 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: 0.1% Week 4 Frequency: 0.1% Week 1 Frequency: 0.3% Week 2 Frequency: 0.2% Week 3 Frequency: 0.1% Week 4 Frequency: 0.3% Week 1 Frequency: 0.7% Week 2 Frequency: 0.7% Week 3 Frequency: 0.8% Week 4 Frequency: 0.7%
Weekly frequency data

Last seen: 16 Feb 2020 by Robin Irizarry

© Dan Jones
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Greater White-fronted Goose

January February March April May June July August September October November December
Week 1 Frequency: 3.9% Week 2 Frequency: 2.8% Week 3 Frequency: 2% Week 4 Frequency: 2% Week 1 Frequency: 1.4% Week 2 Frequency: 1.4% Week 3 Frequency: 1% Week 4 Frequency: 0.4% Week 1 Frequency: 0% Week 2 Frequency: <0.1% Week 3 Frequency: <0.1% Week 4 Frequency: 0% Week 1 Frequency: <0.1% 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: 0.1% Week 2 Frequency: 0.9% Week 3 Frequency: 3.3% Week 4 Frequency: 3.6% Week 1 Frequency: 3.4% Week 2 Frequency: 5% Week 3 Frequency: 2.5% Week 4 Frequency: 4.6% Week 1 Frequency: 3.6% Week 2 Frequency: 3.7% Week 3 Frequency: 4% Week 4 Frequency: 3%
Weekly frequency data

Last seen: 25 Feb 2020 by carla alvarado

© Dan Jones
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Cackling Goose

January February March April May June July August September October November December
Week 1 Frequency: 0.1% 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: 0.1% Week 4 Frequency: 0%
Weekly frequency data

Last seen: 21 Dec 2012 by John Yochum

© Dan Jones
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