Cuckoo signals the arrival of Spring in UK

Children back to school
Spring holiday is over
The Cuckoo returns

This morning I heard a nearby cuckoo for the first time this year from my garden in the UK. It is amazing to think that many of these cuckoos have wintered in the Congo, having endured tempestuous weather in Europe, flights over the Sahara desert, and droughts in many places, since leaving the rainforests of Africa. They arrive in the UK between the end of March and mid-April. As everyone here knows, they lay their eggs in other birds’ nests and then abandon them to the care of the resident bird. Once hatched, they take over the nest, being so much bigger than their host. They especially like the nests of meadow pipits, dunnocks and reed warblers. This is a bit worrying for our local garden birds as we have a few Dunnocks as well as lots of Blue Tits, fat pigeons and some Robins.
The cuckoo is a dove-sized bird with blue grey upper parts, head and chest with dark barred white under parts. Because of their sleek body, long tail and pointed wings they can be confused with kestrels or sparrowhawks. The male and the female are similar and the young cuckoos are brown. Cuckoos are in decline so I suppose we have to protect them even though we don’t like their squatting habit!
They do of course herald in the spring and for that we are truly grateful
Links you might find interesting:
http://www.arkive.org/cuckoo/cuculus-canorus/
http://www.bto.org/science/migration/tracking-studies/cuckoo-tracking