Can someone remind me how to do finger vibrato on recorder? I was once present at a playing day where this was discussed but must have been half asleep after the tea break..... In particular, I'm looking at what is required in "Blues" from John Golland's "New World Dances". Hope someone can help.

hi try here it made no sense to me but it might to you

I haven't had time to go through the link so I'm not sure if I'm just repeating what is written there. I've always seen finger vibrato as to be a pitch vibrato, with the pitch going between the written pitch and a pitch slightly below. I've performed it by fingering the written note and wiggling a finger either just above one of the open holes just below the 1st closed hole or completely on and off one more towards the bottom of the instrument. Amount of pitch variation and speed of vibrato is totally dependent on the taste of the performer and the context.

Yup, that was what was suggested at a workshop I recently attended - I've found that if I use rather lower down holes it doesn't matter so much if I'm a bit uneven in the vibrato action, but it should be possible to do a good vibrato by shading the next again down without closing it fully. To be used sparingly, but very effective when well done .
The workshop in question went through labial vibrato, tongue vibrato, throat vibrato, diaphragmatic vibrato, finger vibrato, and finally a vibrato achieved by sitting on an office chair and spinning round whilst playing, hehe.

I'm having great difficulty resisting the temptation to run to my car and grab a recorder to try out that last one

You have rotating seats in your car??!! Certainly, it is tempting to try it in the office next week. However, I wonder if this sort of vibrato is only apparent to the audience not the player... Is it something to do with Doppler effect?

Anyway, thanks for the help. I will experiment. One of the notes requiring finger vibrato in the Golland piece is bottom B flat on treble, so only one uncovered hole to wiggle over.. Not very easy...

Not the Doppler effect really - if the listener is not whizzing around the player, then the sound will naturally swell and fade as the instrument's orientation changes. And yes, the player wouldn't notice that much, though I suspect that the reflected sound from the surroundings is unlikely to be even all the way round either.
The bottom Bb is certainly a tricky one to do - might be worth doing an upward finger vibrato in that case, by wiggling the pinkie finger...