Folks, This evening we went out to look for the roost of the BARN SWALLOWS near the Willamette River in eastern Yamhill county, south of Dayton. Turning east from Rt 221 on Mallard Ln to Dorsey Rd. we discovered that this site has an insignificant cornfield and no access/poor visibility looking south. We returned to Rt 221. Turning east on Greenacres Rd we found HUGE cornfields between 1.1-1.6 miles east of Rt 221 on the north side of the road. Visibility is limited because the corn is right next to the road and TALL. At 1.9 miles from Rt 221 there is a nice open wheat field that is now stubble. It provides an excellent view. Looking north across this field we saw two vortexes of BARN SWALLOWS going down into cornfields. We estimate 20-25,000 birds. At 2.3 miles from Rt 221 there is another open field with another cornfield at the back of it (again on the north side of Greenacres RD), but we saw no swallows there. Greenacres Rd. ends shortly after that. We could see from our vantage point on Greenacres Rd. that the birds were not roosting on the east side of the Willamette River in Marion county; they were coming from that direction into the Yamhill county site. A phone call from Floyd Schrock let us know that Barn Swallows were not roosting on Grand Island this evening. Good birding, everyone, Paul Sulllivan & Carol Karlen McMinnville