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Continental Summary Moderate movements early in the period in the Desert Southwest and widespread moderate and heavy movements nearly throughout the period in some areas of the East highlighted an active week for migrants. Species on the move this week included…

This weekend’s species on the move highlights movements in the West. Several species are right on time in the West, following the last decade’s patterns of reporting. These include Spotted Sandpiper, Swainson’s Thrush, Yellow Warbler, Western Tanager, and Black-headed Grosbeak. Also…

Continental Summary A busy early week of movements in the West shuts down by week’s end, while widespread favorable conditions arrive by mid to late week in the East and spawn moderate to heavy movements in many areas. Species on…

Continental Summary Moderate to heavy movement from the Great Plains to the Gulf Coast in the early part of the period gave way to generally light movement across much of the country towards the end of the week. Species on…

Continental Summary Widespread light to moderate movements early in the weekend are shut down by two consecutive disturbances in the West, while the arrival of these same disturbances in the East brings a patchwork of moderate to locally heavy movements…

Continental Summary Widespread light to moderate movements occurred early in the period in the West, while a major pulse of moderate to heavy movements occurred late in the week in the Southeast. Species on the move this week included Semipalmated…

This week we highlight species on the move over the past weekend in the Southeastern US, including a number reported in frequencies substantially in advance of the 2004-2013 average (like Swainson’s and Wood Thrushes, Black-throated Blue and Cape May Warblers, Rose-breasted Grosbeak,…

Continental Summary Pulses of movements will track the advance of several low pressure systems across the continent this week, with those system producing light to moderate movements in the West and moderate to heavy movements in the East. Species on…

Continental Summary Light to moderate movements in the West were most evident in the Desert Southwest and California, while strong low pressure passing through the East brought unseasonably cold and unfavorable conditions and kept most moderate movements sparse in space…

This week’s species on the move discussion highlights some advanced arrivals gleaned from this past weekend’s eBird reports. Northern Parula is being reported with greater frequency than the 10-year average for this date in the Great Plains and Upper Midwest…

As forecast last week, a frontal boundary is approaching the Texas and Louisiana coasts this morning. The map below shows the current conditions in Texas and along the Gulf Coast. Note that barbs and wind flags represent the direction from which…

Continental Summary Scattered light to moderate movements that begin the weekend give way to much more widespread movements to end the period in the West, while moderate to heavy movements will occur in many areas of the East as low…