Black-bellied Whistling-Duck

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: 0.2% Week 1 Frequency: 0.1% Week 2 Frequency: <0.1% Week 3 Frequency: 0.4% Week 4 Frequency: <0.1% Week 1 Frequency: 0.3% Week 2 Frequency: 0.1% Week 3 Frequency: 0.1% Week 4 Frequency: 0.4% Week 1 Frequency: 0.1% Week 2 Frequency: 0.2% Week 3 Frequency: 0.1% Week 4 Frequency: 0.2% Week 1 Frequency: 0.2% Week 2 Frequency: 0.1% Week 3 Frequency: 0% Week 4 Frequency: 0.5% Week 1 Frequency: 0.6% Week 2 Frequency: 0.2% Week 3 Frequency: 0.1% Week 4 Frequency: 0.1% Week 1 Frequency: 0.2% 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% Week 4 Frequency: 0% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0%
Weekly frequency data

Last seen: 1 Jul 2020 by Dylan Osterhaus

© David Tønnessen
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Fulvous Whistling-Duck

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: <0.1% 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: 0.1% 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%
Weekly frequency data

Last seen: 23 Sep 2009 by Mike Rader

© Matt Gearheart
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Snow Goose

January February March April May June July August September October November December
Week 1 Frequency: 10.7% Week 2 Frequency: 10.3% Week 3 Frequency: 10.9% Week 4 Frequency: 11.1% Week 1 Frequency: 10.7% Week 2 Frequency: 9.4% Week 3 Frequency: 7.9% Week 4 Frequency: 14.7% Week 1 Frequency: 13.5% Week 2 Frequency: 9.3% Week 3 Frequency: 5.4% Week 4 Frequency: 3.1% Week 1 Frequency: 2.1% Week 2 Frequency: 1.3% Week 3 Frequency: 1.3% Week 4 Frequency: 1.1% Week 1 Frequency: 0.8% Week 2 Frequency: 0.7% Week 3 Frequency: 0.5% Week 4 Frequency: 0.5% Week 1 Frequency: 0.3% Week 2 Frequency: 0.5% Week 3 Frequency: 0.4% Week 4 Frequency: 0.3% Week 1 Frequency: 0.3% Week 2 Frequency: 0.3% Week 3 Frequency: 0.2% Week 4 Frequency: 0.2% Week 1 Frequency: 0.4% Week 2 Frequency: 0.3% Week 3 Frequency: 0.1% Week 4 Frequency: 0.2% Week 1 Frequency: 0.4% Week 2 Frequency: 0.4% Week 3 Frequency: 0.3% Week 4 Frequency: 0.3% Week 1 Frequency: 0.3% Week 2 Frequency: 0.4% Week 3 Frequency: 1.1% Week 4 Frequency: 3.1% Week 1 Frequency: 7.9% Week 2 Frequency: 12.6% Week 3 Frequency: 12% Week 4 Frequency: 10.5% Week 1 Frequency: 11% Week 2 Frequency: 10.3% Week 3 Frequency: 10% Week 4 Frequency: 10%
Weekly frequency data

Last seen: 29 Jun 2020 by Gary Lechliter

© Bryan White
© Lisa Hoffman

Ross's Goose

January February March April May June July August September October November December
Week 1 Frequency: 3.5% Week 2 Frequency: 2.9% Week 3 Frequency: 2.6% Week 4 Frequency: 2.8% Week 1 Frequency: 2.4% Week 2 Frequency: 2.1% Week 3 Frequency: 2% Week 4 Frequency: 4.4% Week 1 Frequency: 4.4% Week 2 Frequency: 2.7% Week 3 Frequency: 1.4% Week 4 Frequency: 0.6% Week 1 Frequency: 0.5% Week 2 Frequency: 0.3% Week 3 Frequency: 0.2% Week 4 Frequency: 0.1% Week 1 Frequency: 0.1% Week 2 Frequency: <0.1% Week 3 Frequency: <0.1% Week 4 Frequency: 0% 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% Week 1 Frequency: 0% Week 2 Frequency: 0% Week 3 Frequency: 0% Week 4 Frequency: 0% Week 1 Frequency: <0.1% Week 2 Frequency: 0.1% Week 3 Frequency: <0.1% Week 4 Frequency: 0% Week 1 Frequency: <0.1% Week 2 Frequency: <0.1% Week 3 Frequency: 0.2% Week 4 Frequency: 0.4% Week 1 Frequency: 1.8% Week 2 Frequency: 3.6% Week 3 Frequency: 4.1% Week 4 Frequency: 3.5% Week 1 Frequency: 2.9% Week 2 Frequency: 3.7% Week 3 Frequency: 3.1% Week 4 Frequency: 3.3%
Weekly frequency data

Last seen: 4 Jun 2020 by Gary Lechliter

© Mike Harding
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Greater White-fronted Goose

January February March April May June July August September October November December
Week 1 Frequency: 6.2% Week 2 Frequency: 5.1% Week 3 Frequency: 6.3% Week 4 Frequency: 7.6% Week 1 Frequency: 7.8% Week 2 Frequency: 6.3% Week 3 Frequency: 4.6% Week 4 Frequency: 8.5% Week 1 Frequency: 7.6% Week 2 Frequency: 5.6% Week 3 Frequency: 2.5% Week 4 Frequency: 1.3% Week 1 Frequency: 0.8% Week 2 Frequency: 0.5% Week 3 Frequency: 0.4% Week 4 Frequency: 0.4% Week 1 Frequency: 0.3% Week 2 Frequency: 0.2% Week 3 Frequency: 0.2% Week 4 Frequency: 0.2% 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: 0.2% Week 4 Frequency: 0.2% Week 1 Frequency: 0.1% Week 2 Frequency: 0.2% Week 3 Frequency: 0.5% Week 4 Frequency: 0.1% Week 1 Frequency: 0.1% Week 2 Frequency: <0.1% Week 3 Frequency: 0.2% Week 4 Frequency: 0.3% Week 1 Frequency: 1.4% Week 2 Frequency: 3.1% Week 3 Frequency: 4.5% Week 4 Frequency: 6.5% Week 1 Frequency: 9.5% Week 2 Frequency: 9% Week 3 Frequency: 6.5% Week 4 Frequency: 5% Week 1 Frequency: 6% Week 2 Frequency: 5.4% Week 3 Frequency: 5.4% Week 4 Frequency: 6%
Weekly frequency data

Last seen: 15 Jun 2020 by David Schneider

© Malcolm Gold
© Lisa Hoffman

Brant

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: 0.1% 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% 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% 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%
Weekly frequency data

Last seen: 2 Feb 2019 by Mike Rader

© Dave Klema
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Lesser Prairie-Chicken

© Doug Gochfeld
© Gerrit Vyn

Black Rail

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© Mark Robbins
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