Fall Migration Monitoring: Red Crossbill

Fall Migration Monitoring: Red Crossbill

CHIP FMM: August 2 – 7th , 2012

The first week of CHIP started beautifully. There were still some determined singers: Least Flycatchers, Yellow Warblers, Olive sided Flycatchers, White-crowned Sparrows and Song Sparrows. The Canada Geese are still around but frequent the beach less now that people have claimed it. There is also a flock of Ring-billed Gulls that float in a group across the lake. The bank swallows that lived in a colony across the lake were seen the first few days of FMM but have either headed south, or have stopped coming by the banding station. The Flock of Red Crossbills and White-winged Crossbills arrived at the station, close to 200 of them. The weather was variable, some days it was over 30 degrees, then it would break and we would have an intense storm over night. It seemed that the warmer days after the storms resulted in more captures. We caught a lot of adult birds that were just finishing their flight feather molt, some that had already finished (Yellow Warblers) and a few birds were starting to carry fat. We started to catch the migrating “Traill’s” Flycatchers and stopped catching the resident Duskys that we were catching at the MAPS stations. The most numerous catches for the week included: “Traill’s” Flycatchers, Least Flycatchers, Song and White-crowned Sparrows and Yellow Warblers. We were only catching adult ”Traill’s” and only juvenile Yellow Warblers. It also seems that the adult Cowbirds have already left CHIP. There were a few juveniles, but they were becoming fewer and fewer as the days passed.

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About chipmigration

The Calgary Bird Banding Society is a non-profit research organization conducting the third year of a landbird monitoring project at Cypress Hills Interprovincial Park, Alberta. Bird banding is an integral aid to the study and protection of wild birds. It is typically facilitated by using a mist net. Birds fly into the mist net, are gently removed and a permanent aluminum light-weight band is placed around the lower leg. Often the birds are measured, weighed, sexed and aged before release back into the wild. When a banded bird is recovered, the number and information on the band is used to trace migratory patterns and other vital data. This information made available to the banding and scientific communities. The data is invaluable to many scientific studies, including Global Warming and Pollution research.
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