Firetail behaviour

[(Dr Richard Nowotny)]

Following-up on a suggestion I checked in Simpson and Day (why didn't I
think of that?).
Page 372 in the fifth edition:  "The more primitive Emblema-Neochmia group
(of Australian finches) use an ancestral 'stem dance' at courtship.  The
male holds a long grass stem (or feather??) by the thick end and with stiff
legs bobs up and down on a branch."
Interesting.
RN