Not sure about the bit where you say you're not completely mad though !
Recent Trip Report
Northern Europe's Exotics Feb 07
http://www.hows.org.uk/inter/birds/euro/euro.htm
Not to everyones taste!
Mark
What a refreshingly bizarre thing to do ! I had no idea that there was a feral rhea population in the Western Palaearctic. You didn't mention whether they were Lesser or Greater Rhea, and are you absoloutely sure they aren't a previously overlooked relict wild population ?
Not sure about the bit where you say you're not completely mad though !
You took a bad day for birding the Netherlands... I'm glad you didn't get into trouble. I saw a three-species flock of Flamingos today in the southwest of the Netherlands – they were even starting courtship!