Since I cannot get out to Cadiz province (in my view home to the very best birdwatching that Andalucia can offer) these days I look forward to reading your trip reports from there & elsewhere even if I risk turning green with envy! There's no better antidote to the winter blues in the north of Europe than a quick trip to Andalucia where, with luck, it'll be relatively warm and sunny and where spring starts in February (or earlier). If I can't do it myself then doing so vicariously through your reports will be the next best thing.
To respond to Pratincol's comment birding seems to be growing in popularity in Spain where its devotees have a much younger profile than those in the UK. This seems to have encouraged various local authorities to take birding tourism more seriously & give them more of a motive to preserve various habitats.