The bird from the Texas Dike looks like a Common Loon to me. The Pacific should have a visible chin strap and often a line down the face to the chin strap. There is too much grey on the neck and the bill is not thin enough to be a Red-throated. Is it possible someone saw a different bird that dove before you took the pictures. Loons can be tricksy that way. Vicki Crutchfield Live Houston (Harris County) and work in Galveston, (Galveston County) Cell : 409-789-1178 Edit your Freelists account settings for TEXBIRDS at //www.freelists.org/list/texbirds Reposting of traffic from TEXBIRDS is prohibited without seeking permission from the List Owner