Mystery of the vanishing sparrow
The Independent offered £5,000 for a convincing theory about why the house sparrow was dying out in cities. The answer seems to lie with falling insect numbers
This excerpt from the article via the above link, further explains:
Dr Vincent, then of De Montfort University in Leicester, said: "This is one of the most mysterious and complex declines of a species in recent years. The study highlights that sparrow chicks are hatching but they aren't surviving.
"This is partly down to the loss of green spaces within British cities through development on green space, tree removal and the conversion of front gardens for parking. The loss of deciduous greenery within urban areas may have made life much more difficult for birds like house sparrows that need large numbers of insects to feed their young."
I've noticed fewer and fewer birds (particularly sparrows) have been appearing in my garden this year even though I keep birdfeeders and birdbaths filled. I find it very sad and also quite disturbing. What about your garden (yard)? Have you noticed a decline in house sparrows and/or other birds where you live?