Two Parents Now
The newcomer was another adult least tern, the 2nd parent. The family group is complete. Now the juveniles become aware of the 2nd bird. Can't tell which is mom or dad, both look alike.
Interior Least Tern (Sternula antillarum ssp. athalassos)
least ternjuvenile least ternternwater fowlaquaticaquatic birdsspillwayupper spillwaywhite rock lakedallas texasuncommonparent and childbeggingjuvenileendangeredinterior least ternsmallest north american ternrareSternula antillarum ssp. athalassos