Garden Tits

This year coal tits seem to have pretty well totally displaced blue tits from my Chiswick garden. Nothing has changed in the way that I feed the birds. The great tits are still around as are long tailed tits, robins, dunnock, blackbirds, magpies, wood pigeons together with the occasional jay and great spotted woodpecker.  It is just the blue tits that have gone and coal tits, which were rare until this year, that have taken their place.