Nice! It would be cool to add some wing feathers from each bird, would highlight the difference between the Eastern and Osceola.
Any idea what happened with the beard on the Merriams? I know they typically have thin, whispy beards that may be a bit shorter than Easterns - but that one looks broken from ice or beard rot/vitamin deficiency...
I've considered pursuing a US SuperSlam, and maybe once my last kid is out of the house I'll seriously consider it. Not sure I would pursue a Royal or World slam, mainly because I think those foreign birds look more like peacocks than turkeys..haha...