In article , Dave Plowman (News)
wrote:
In article , Iain Churches
wrote:
Sparrows used to be about the most common bird in this part of
London. Then all but disappeared perhaps 10 years ago. And although
they've returned, in nowhere near the same numbers.

What happened to cause a reduction in their numbers?

I dunno. I've searched, but found no definitive answer. They seemed to
disappear near overnight.

I've hear mention of this a number of times. In general with people also
saying they don't know the cause.

Two that have occurred to me are

1) Cats. The little expletives are probably mass murderers.

2) There is an infection that has been found to move from just one species
of bird to another recently, so maybe that has also done for sparras.

Hard for me to tell. But I certainly see far more other types of birds on
our garden. Even wrens which I only started noticing a couple of years ago
as they tend to be so small and shy.

Slainte,

Jim

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