A bit off topic but I thought I should set the RSPB and other minds at rest with information discovered on holiday about missing species. Firstly the missing sparrows are all alive and well around the Blue Mosque area in Istanbul. The shortage of herons in Maldives in due to them also being in Istanbul nesting in huge quantities in the trees of the park opposite our hotel (Sirkeci Konak).
Lastly the pigeons Boris kicked out of Trafalgar Square now all appear to be on holiday in Male.
I'm sure that bit of useless information will make you all feel better