so the film I’m looking for was on a VHS recording which I’m pretty sure was shown before the snowman on uk tv very close to or on Christmas Day.
it was shown sometime between the mid 80’s – mid 90’s
it was really basic cartoon animation about this bird. The opening scene was this big black tree (but possibly telephone wires) with all the birds on, perhaps the birds were different colours.
this one bird was annoyed for some reason and plucked the feathers to make his own colourful coat, so big it looked like a big Swan or peacock.
The feathers later fell off and I think the bird died.
the short film had no speech, just lots of birds chirping throughout, it couldn’t have been longer than 5-10 minutes long