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January February March April May June July August September October November December
Week1Frequency:1.6% Week2Frequency:2.1% Week3Frequency:2% Week4Frequency:0.8% Week1Frequency:1.5% Week2Frequency:1% Week3Frequency:0.3% Week4Frequency:0.6% Week1Frequency:0.7% Week2Frequency:0.3% Week3Frequency:0.2% Week4Frequency:0.1% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0.2% Week4Frequency:0.2% Week1Frequency:0.2% Week2Frequency:0% Week3Frequency:0.1% Week4Frequency:<0.1% 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:0.2% Week1Frequency:0.4% Week2Frequency:0.7% Week3Frequency:1.2% Week4Frequency:2.5% Week1Frequency:1.1% Week2Frequency:2.6% Week3Frequency:2.1% Week4Frequency:1.3% Week1Frequency:2.3% Week2Frequency:2.3% Week3Frequency:1.6% Week4Frequency:1.8%
Weekly frequency data

Last seen: 3 Feb 2023 by Kayla McCurry

© Roxanna Tessman
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January February March April May June July August September October November December
Week1Frequency:0.1% Week2Frequency:0% Week3Frequency:0.3% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0.1% Week4Frequency:0.1% Week1Frequency:0.1% Week2Frequency:0.2% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0.1% Week2Frequency:0% Week3Frequency:0.1% Week4Frequency:0.1% 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% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0.1% Week4Frequency:0%
Weekly frequency data

Last seen: 10 Mar 2022 by Jim Hostick

© Norman Barrett
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January February March April May June July August September October November December
Week1Frequency:1.6% Week2Frequency:2.2% Week3Frequency:1.9% Week4Frequency:1.8% Week1Frequency:2% Week2Frequency:2.1% Week3Frequency:1.5% Week4Frequency:1.7% Week1Frequency:2.6% Week2Frequency:2.4% Week3Frequency:2.4% Week4Frequency:2% Week1Frequency:2.6% Week2Frequency:2.3% Week3Frequency:4.2% Week4Frequency:3.3% Week1Frequency:2.2% Week2Frequency:1.5% Week3Frequency:0.8% Week4Frequency:0.6% Week1Frequency:0.2% Week2Frequency:0.2% Week3Frequency:0% Week4Frequency:0.1% Week1Frequency:0% Week2Frequency:0.1% Week3Frequency:0% Week4Frequency:0.1% Week1Frequency:0.1% Week2Frequency:0.3% Week3Frequency:0.1% Week4Frequency:0.2% Week1Frequency:0.9% Week2Frequency:1% Week3Frequency:3% Week4Frequency:7.6% Week1Frequency:9% Week2Frequency:6.5% Week3Frequency:6.3% Week4Frequency:4.8% Week1Frequency:2.2% Week2Frequency:2.3% Week3Frequency:2% Week4Frequency:1% Week1Frequency:2% Week2Frequency:1.8% Week3Frequency:1.7% Week4Frequency:1.1%
Weekly frequency data

Last seen: 3 Feb 2023 by Howard Sands

© Alex Lamoreaux
© Howard Sands
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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:0.1% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0.1% 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% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0.1% Week3Frequency:0.1% Week4Frequency:0%
Weekly frequency data

Last seen: 16 Feb 2007 by Cascade/Siskiyou NM Monitoring Project

© James Livaudais
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January February March April May June July August September October November December
Week1Frequency:2.1% Week2Frequency:2.3% Week3Frequency:3.8% Week4Frequency:1.7% Week1Frequency:1.8% Week2Frequency:1.2% Week3Frequency:1.1% Week4Frequency:1.7% Week1Frequency:1.2% Week2Frequency:0.8% Week3Frequency:1.2% Week4Frequency:0.8% Week1Frequency:1% Week2Frequency:0.4% Week3Frequency:0.4% Week4Frequency:0.2% Week1Frequency:0% Week2Frequency:0.3% Week3Frequency:0.1% 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:0.1% Week4Frequency:1.3% Week1Frequency:2.2% Week2Frequency:1.5% Week3Frequency:2.4% Week4Frequency:3.3% Week1Frequency:2.5% Week2Frequency:2% Week3Frequency:1.8% Week4Frequency:1.7% Week1Frequency:2.4% Week2Frequency:0.8% Week3Frequency:2.9% Week4Frequency:2.4%
Weekly frequency data

Last seen: 3 Feb 2023 by Howard Sands

© Cody Smith
© Frank Lospalluto
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January February March April May June July August September October November December
Week1Frequency:26.9% Week2Frequency:28.9% Week3Frequency:29.3% Week4Frequency:34% Week1Frequency:39.3% Week2Frequency:33.9% Week3Frequency:31.6% Week4Frequency:40.8% Week1Frequency:40.4% Week2Frequency:44.7% Week3Frequency:41.7% Week4Frequency:44.5% Week1Frequency:49.6% Week2Frequency:44.6% Week3Frequency:41.3% Week4Frequency:41.9% Week1Frequency:41% Week2Frequency:36% Week3Frequency:24.1% Week4Frequency:21.9% Week1Frequency:17.9% Week2Frequency:13.2% Week3Frequency:11.5% Week4Frequency:11.4% Week1Frequency:12.1% Week2Frequency:17.6% Week3Frequency:16% Week4Frequency:17.2% Week1Frequency:19.2% Week2Frequency:23.3% Week3Frequency:23% Week4Frequency:23.1% Week1Frequency:27% Week2Frequency:27.9% Week3Frequency:25.3% Week4Frequency:21.7% Week1Frequency:22.5% Week2Frequency:25.5% Week3Frequency:28.7% Week4Frequency:31.9% Week1Frequency:28% Week2Frequency:26.1% Week3Frequency:26.1% Week4Frequency:22.3% Week1Frequency:21.9% Week2Frequency:22.6% Week3Frequency:24.9% Week4Frequency:21%
Weekly frequency data

Last seen: 8 Feb 2023 by John F. Gatchet

© Nick Viani
© Erik Bergman
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© Karl Schneck
© Kerry Ross
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© Karl Schneck
© Adam Nashban