I would posit that your Long-billed Dowitcher likely never left for the summer as opposed to it being an unprecedentedly early S-bound migrant. The thing about LBDO is that they undergo a prebasic molt at a molt-migration stopover site well north of Texas in the fall before arriving here, so when they do reach Texas they are in full basic plumage. They are usually one of the latest arriving species in the fall. I'm probably preaching to the choir here but others may not know this about the species.
On a side note, Lesser Yellowlegs have arrived in the South Plains this week.
Good (shore)birding! Justin Bosler currently in Lubbock, TX
On Tue, Jun 26, 2018 at 5:59 PM, Willie Sekula <williebird22...> wrote:
> Justin et al, > I had a breeding plumaged Long-billed Dowitcher at the Calallen Sod Farm > this past Sunday [June 29th]. > > Willie Sekula > Falls City > > > Sent from my iPhone > > > On Jun 23, 2018, at 5:33 PM, Justin Bosler <justin.bosler...> > wrote: > > > > Texbirds, > > > > By early June, we had Long-billed Curlews returning to the coast, then > earlier this week, the first adult Western Willets were noted at various > locations across Central Texas, and now we have Greater Yellowlegs in the > South Plains. Yesterday, I noted 3 at a playa near Southland in Garza > County. I am now more convinced that the 3 I had in Pecos County last week > were, indeed, S-bound migrants as opposed to summering. Before long, Least > Sandpipers will be back. > > > > Good birding! > > Justin Bosler > > currently in the air between Dallas and Austin >