I've just been observing a pair of collared doves renew their vows, so to speak (they pair for life) but it struck me that it may be quite early in the year for nest-building and egg-laying. Are there any birds in your area that appear to be preparing for breeding ? I've only really noticed the pair of CDs; the jackdaw, magpies and wood pigeons all hang around in several numbers so I don't know what they're up to, if anything.