Saw them at Sneaky Pete's in Edinburgh the other day and they were quite good. Highlight of the show was this song called 'In Our Talons' link [www.myspace.com]
Haven't been able to get it out of my head since the gig. They sound sort of similar to Grizzly Bear or The Mountain Goats (both bands well worth checking out btw). Not sure what I think of the Bowerbirds generally, but live they played a good set and this song 'In Our Talons' has got to be the catchiest little ditty I've heard since I first listened to Mumford & Sons.