The weeks following our arrival at the Clive Runnells Family Mad Island Marsh Preserve can be hugely unpredictable. In certain years, early April has been the slowest part of the season, with wintering birds beginning to depart and arriving migrants not yet moving north in large numbers. The third week of April traditionally marks the start of peak migration season.
This year, we also experienced some slow periods. But, luckily, most days we saw at least a trickle of migrant birds. A nice arrival event during the second week of April resulted in the capture and release of more than 15 species of warblers.
Highlights included a large number of hooded and Kentucky warblers, as well as a couple of Swainson
’s and cerulean warblers. We also captured our first orchard oriole, summer tanager and Acadian flycatcher.