Monday 28 July 2014 5.30pm
As for rooks in SE1 that would be a surprise; they're very uncommon in London (and have been so since the early 20th century), largely confined to the capital's rural fringes. Unlike carrion crow which is well adapted to the inner city because of all the food we leave about, and the maturation of trees planted in streets and parks giving them safe nesting places. What we sow, we reap.
I rather like the crows - intelligent birds - but I don't trust them (it's the way they look at you). What I remember are the huge flocks of starlings over Trafalgar Square and roosting on the National Gallery (though they really WERE a nuisance), and flying round the old GPO building in the City of London in the evenings - a glorious sight. And once upon a time there were sparrows of course.