Observers of hummers may wonder: from what distance can these birds spot a feeder while moving along a south-to-north migratory route at 40-50 mph? My feeder is about 600 yds from the center of the Okanagan flyway. Today (same week of first sighting as 2014-15-17-18) at noon, one calliope male followed 20 min later by a larger one hovered at the feeder for 10 sec (too short for a picture), then - as if having put enough fuel in the tank to get to the next 'gas station'- flew back toward the flyway and disappeared heading north. Of interest for migration timing is that a strong south wind blew the previous 2 days, possibly aiding their trip, and bush and tree buds (for shelter during rest) broke out last week.
Latitude: 49 Longitude: -119.5
Observed by: Dr Paul
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