Thursday, July 15, 2010
Jackson Bottom birds: July 9-15, 2010
Eight weeks. It has been 8 weeks since anyone has heard the harsh chatter or slurred whistle of BULLOCK'S ORIOLES. Then, this week a noisy family group is obvious in the cottonwood and ash trees around the Clean Water Services building and the employeee parking area at Hillsboro's Jackson Bottom Wetlands Preserve nature center.
We know the orioles nested here last year, as a nest was obvious all winter in the tall cottonwood trees. The nest survived the wind and rain storms of winter, as its woven form was built primarily of blue tarp strings!
This week a YELLOW WARBLER was singing. Earlier in June we had several singing males. But they are quiet now. No one has seen or heard WILLOW FLYCATCHERS for two weeks either, but we are sure they breed in the wetlands. These birds are just quiet now that they likely have fledgling young to take care of, or perhaps they are completely finished with breeding this year.
Another bird that is harder to figure out is the LAZULI BUNTING. At least 3 singing males were present for about 2 weeks at the end of May and early June, out in the grassy fields. But they have not been seen or heard from since. Other common migrants that could breed, but apparently didn't, were PACIFIC-SLOPE FLYCATCHER and WARBLING VIREO.
Young birds are everywhere, including CLIFF SWALLOWS, AMERICAN ROBINS, CINNAMON TEAL, WESTERN SCRUB-JAYS, DOWNY WOODPECKERS, SONG SPARROWS, NORTHERN FLICKERS, LESSER GOLDFINCHES, and many more.
Some fall birds, primarily waterbirds are returning already. These include GREAT EGRET, GREATER and LESSER YELLOWLEGS, and LEAST SANDPIPERS.
Here is this week's list of birds at Jackson Bottom.
Great Blue Heron