Black-bellied Whistling-Duck

January February March April May June July August September October November December
Week 1 Frequency: 2.1% Week 2 Frequency: 2.3% Week 3 Frequency: 2.5% Week 4 Frequency: 1.9% Week 1 Frequency: 1.9% Week 2 Frequency: 2.1% Week 3 Frequency: 1.5% Week 4 Frequency: 3.5% Week 1 Frequency: 3.2% Week 2 Frequency: 5.3% Week 3 Frequency: 7.1% Week 4 Frequency: 7.4% Week 1 Frequency: 9.1% Week 2 Frequency: 9.5% Week 3 Frequency: 9% Week 4 Frequency: 10.7% Week 1 Frequency: 11.4% Week 2 Frequency: 11.6% Week 3 Frequency: 12% Week 4 Frequency: 13.1% Week 1 Frequency: 12.9% Week 2 Frequency: 12.2% Week 3 Frequency: 12.5% Week 4 Frequency: 11.8% Week 1 Frequency: 11.4% Week 2 Frequency: 13.3% Week 3 Frequency: 11.4% Week 4 Frequency: 11.2% Week 1 Frequency: 12.9% Week 2 Frequency: 10.4% Week 3 Frequency: 11.6% Week 4 Frequency: 8.1% Week 1 Frequency: 8.1% Week 2 Frequency: 7.4% Week 3 Frequency: 5.9% Week 4 Frequency: 5.5% Week 1 Frequency: 4.2% Week 2 Frequency: 4.1% Week 3 Frequency: 4% Week 4 Frequency: 4.1% Week 1 Frequency: 4.1% Week 2 Frequency: 3.1% Week 3 Frequency: 2.6% Week 4 Frequency: 1.9% Week 1 Frequency: 1.5% Week 2 Frequency: 1.9% Week 3 Frequency: 2.1% Week 4 Frequency: 2.6%
Weekly frequency data

Last seen: 25 May 2020 by edward Haight

© Jack Rogers
© James (Jim) Holmes

Fulvous Whistling-Duck

January February March April May June July August September October November December
Week 1 Frequency: 0.2% Week 2 Frequency: 0.3% Week 3 Frequency: 0.3% Week 4 Frequency: 0.3% Week 1 Frequency: 0.3% Week 2 Frequency: 0.2% Week 3 Frequency: 0.3% Week 4 Frequency: 0.6% Week 1 Frequency: 0.6% Week 2 Frequency: 0.6% Week 3 Frequency: 0.8% Week 4 Frequency: 1.2% Week 1 Frequency: 1.1% Week 2 Frequency: 1.2% Week 3 Frequency: 1.6% Week 4 Frequency: 2.9% Week 1 Frequency: 3.2% Week 2 Frequency: 1.4% Week 3 Frequency: 1.7% Week 4 Frequency: 1.8% Week 1 Frequency: 2.1% Week 2 Frequency: 2.6% Week 3 Frequency: 2.7% Week 4 Frequency: 2.3% Week 1 Frequency: 3.1% Week 2 Frequency: 3% Week 3 Frequency: 3% Week 4 Frequency: 2.7% Week 1 Frequency: 1.5% Week 2 Frequency: 1% Week 3 Frequency: 2.3% Week 4 Frequency: 1.4% Week 1 Frequency: 1.1% Week 2 Frequency: 1.2% Week 3 Frequency: 0.9% Week 4 Frequency: 0.6% Week 1 Frequency: 0.3% Week 2 Frequency: 0.2% Week 3 Frequency: 0.3% Week 4 Frequency: 1.1% Week 1 Frequency: 1.7% Week 2 Frequency: 0.4% Week 3 Frequency: 0.4% Week 4 Frequency: 0.1% Week 1 Frequency: 0.1% Week 2 Frequency: 0.1% Week 3 Frequency: 0.3% Week 4 Frequency: 0.2%
Weekly frequency data

Last seen: 25 May 2020 by Dale Hamilton

© Denise Plauche
© James (Jim) Holmes

Snow Goose

January February March April May June July August September October November December
Week 1 Frequency: 8.7% Week 2 Frequency: 7.2% Week 3 Frequency: 7.4% Week 4 Frequency: 6.9% Week 1 Frequency: 6.3% Week 2 Frequency: 4.9% Week 3 Frequency: 4.3% Week 4 Frequency: 3.4% Week 1 Frequency: 2.6% Week 2 Frequency: 1.2% Week 3 Frequency: 1.2% Week 4 Frequency: 0.7% Week 1 Frequency: 0.5% Week 2 Frequency: 0.4% Week 3 Frequency: 0.2% Week 4 Frequency: 0.1% Week 1 Frequency: 0.1% Week 2 Frequency: 0.1% 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: <0.1% Week 2 Frequency: 0% Week 3 Frequency: 0.1% 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: 0.1% Week 2 Frequency: 0.2% Week 3 Frequency: 0.4% Week 4 Frequency: 4.3% Week 1 Frequency: 6.5% Week 2 Frequency: 6.6% Week 3 Frequency: 7.9% Week 4 Frequency: 8.2% Week 1 Frequency: 8.5% Week 2 Frequency: 10% Week 3 Frequency: 17.1% Week 4 Frequency: 9%
Weekly frequency data

Last seen: 8 May 2020 by Jim Valenzuela

© Van Remsen
© Paul Marvin

Ross's Goose

January February March April May June July August September October November December
Week 1 Frequency: 2.8% Week 2 Frequency: 2.2% Week 3 Frequency: 2.2% Week 4 Frequency: 2% Week 1 Frequency: 1.7% Week 2 Frequency: 1.1% Week 3 Frequency: 0.9% Week 4 Frequency: 0.8% Week 1 Frequency: 0.7% Week 2 Frequency: 0.1% Week 3 Frequency: 0.1% Week 4 Frequency: 0.1% Week 1 Frequency: 0.1% Week 2 Frequency: <0.1% 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: <0.1% Week 4 Frequency: <0.1% Week 1 Frequency: <0.1% Week 2 Frequency: 0% Week 3 Frequency: 0% 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: 0.1% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: <0.1% Week 4 Frequency: 0.9% Week 1 Frequency: 1.9% Week 2 Frequency: 1.3% Week 3 Frequency: 2.1% Week 4 Frequency: 2% Week 1 Frequency: 2.1% Week 2 Frequency: 3.9% Week 3 Frequency: 7.1% Week 4 Frequency: 2.5%
Weekly frequency data

Last seen: 29 Feb 2020 by Erik Johnson

© 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: 6% Week 2 Frequency: 5.5% Week 3 Frequency: 5.9% Week 4 Frequency: 5.2% Week 1 Frequency: 4.8% Week 2 Frequency: 3.4% Week 3 Frequency: 2.7% Week 4 Frequency: 2.4% Week 1 Frequency: 1.7% Week 2 Frequency: 0.6% Week 3 Frequency: 0.3% Week 4 Frequency: 0.2% Week 1 Frequency: 0.3% Week 2 Frequency: 0.2% Week 3 Frequency: 0.1% Week 4 Frequency: 0.1% Week 1 Frequency: 0.1% Week 2 Frequency: 0.1% 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% Week 1 Frequency: 0.1% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: <0.1% Week 1 Frequency: 0.1% Week 2 Frequency: 0.1% Week 3 Frequency: 0.1% Week 4 Frequency: 0.1% Week 1 Frequency: 0.2% Week 2 Frequency: 0% Week 3 Frequency: <0.1% Week 4 Frequency: 0.1% Week 1 Frequency: 0.1% Week 2 Frequency: 2% Week 3 Frequency: 2.6% Week 4 Frequency: 9.8% Week 1 Frequency: 10.5% Week 2 Frequency: 5.6% Week 3 Frequency: 5.3% Week 4 Frequency: 5.7% Week 1 Frequency: 5.4% Week 2 Frequency: 6.8% Week 3 Frequency: 13% Week 4 Frequency: 6%
Weekly frequency data

Last seen: 6 Mar 2020 by Joe Youtz

© Van Remsen
© Paul Marvin

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: <0.1% 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

Whooping Crane

© William Matthews
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