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Collaborative List – February 2018

10,000 Birds

Cattle Egret – Bubulcus ibis. Hopland Research and Extension Center (restricted access). Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. Tricolored Heron – Egretta tricolor. 01 Jan 2018.

2018 100
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Collaborative List – March 2018

10,000 Birds

Sacramento Expo Center, RV site, on the American River. Hopland Research and Extension Center (restricted access). Hopland Research and Extension Center (restricted access). Hopland Research and Extension Center (restricted access). Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route.

2018 100
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Collaborative List – April 2018

10,000 Birds

Cattle Egret – Bubulcus ibis. Hopland Research and Extension Center (restricted access). Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. El Centenario Tidal Flats. 01 Jan 2018. 01 Jan 2018.

2018 100
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Collaborative List – August 2017

10,000 Birds

Sacramento NWR–Visitor Center. Cattle Egret – Bubulcus ibis. Sacramento NWR–Visitor Center. Forestry Research Institute of Malaysia. Forestry Research Institute of Malaysia. Sacramento NWR–Visitor Center. Wandering Whistling-Duck – Dendrocygna arcuata. Western Australia.

2017 100
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Collaborative List – May 2018

10,000 Birds

Cattle Egret – Bubulcus ibis. Hopland Research and Extension Center (restricted access). Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. Sacramento NWR–Auto Tour Route. El Centenario Tidal Flats. 01 Jan 2018. 01 Jan 2018.

2018 100
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Collaborative List – October 2018

10,000 Birds

Cattle Tyrant – Machetornis rixosa. Sacramento Expo Center, RV site, on the American River. Hopland Research and Extension Center (restricted access). Hopland Research and Extension Center (restricted access). Hopland Research and Extension Center (restricted access). Sacramento NWR–Auto Tour Route.

2018 113
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Collaborative list – September 2018

10,000 Birds

Cattle Tyrant – Machetornis rixosa. Sacramento Expo Center, RV site, on the American River. Hopland Research and Extension Center (restricted access). Hopland Research and Extension Center (restricted access). Hopland Research and Extension Center (restricted access). Sacramento NWR–Auto Tour Route.

2018 113