COBirds, This morning around 10 AM, while walking at Pella Crossing near Hygiene, I spotted a flock of 38 Sandhill Cranes overhead, drifting north. Over on the western unit near St. Vrain Creek there were about a dozen newly arrived Great Blue Herons at the small rookery there and one of the nests was occupied (part of the 'occupy' movement?) by a Great Horned Owl. In the same area there was also a lone Myrtle Yellow-rumped Warbler. It's beginning to look a lot like migration.
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