Unusual Bird Sighting: Common Yellowthroat
Sam Easterson has caught a relatively unusual occurrence on camera. On New Year's day Sam's camera trap discovered a Common Yellowthroat (Geothlypis trichas) skulking behind one of our sheds (I should add that this is the same shed the opossums have a den underneath). It is relatively unusual only because of the season, this is only the third time a Common Yellowthroat has been sighted here in winter!
All told Kimball has spotted the Common Yellowthroat 66 times in Exposition Park since he began surveying the area in 1984. Sixty-two of those sightings occurred during the bird's fall migration, between 27 August and 2 December. Kimball has also recorded two additional sightings during the bird's spring migration in April. Prior to this year's winter sighting, Kimball has observed the yellowthroat twice in mid-winter – on 27 January 2010 and 6 January 2011. This is why it was a bit of a surprise when Sam's camera trap recorded the visit of a female Common Yellowthroat earlier this month. According to Kimball, "modern technology is clearly better than an old human field ornithologist in keeping track of more secretive birds!" Regardless of the mode of sighting this record is good news. It suggests that the plantings in the North Campus will provide an important habitat that is lacking in the urban core. We are planting dense low vegetation that is the domain of wrens, Geothlypis warblers, various sparrows and other bird species that are rarely seen in your common urban park that is dominated by trees and lawns.
Thanks Kimball for your detailed bird records and natural history information of the Common Yellowthroat!