Several very early migrants arrived at Busey Woods near Urbana, Illinois on April 16th. Several of these species set early arrival dates for Central Illinois. My name is A.J form Platteville, Wisconsin. I sighted an oriole on April 19th. While I was riding past my friends house I saw it in front of his house on his yard.
Migration is in full swing with sightings of many new returning species from all over the state.
With the many successive low pressure fronts passing through, birds that are being reported in southern Missouri are in central and northern Missouri within the next day or two. April 23 Orioles and tanagers made appearances this past week in the D.C. area. Thrushes and vireos were also abundant this past week and many species of warblers were reported as well. Warm south winds late on the 26th presaged the appearance of good numbers of migrants the following day, over 20 new species were sighted. Migrants have appeared in large numbers and varieties since last weekend, with many species being widely reported.