Beautiful Lin! I am so jealous of your red winged blackbirds!!! I WISH we would get some here but so far I have not seen a one.
Those Pileateds ARE a mated pair. I can't tell you exactly which ones are in the photos but I can tell you there are THREE here. The third one was not on that tree at that time with the other 2 but on another tree. The 3 were working the pecan trees like crazy today, all staying close but not always necessarily on the same tree. They were all communicating a lot. I know 1 is their offspring but which exact 2 of the 3 are in those photos I can not say.