Migrants (birds that is)
 

A chiff chaff took a territory at the bottom of the garden on Friday - high time too, they're usually here by the end of March.
Goldfinches (not strictly migrants) but they came back to our patch today.
Seen nothing else yet.

Rod

Migrants (birds that is)
 

"Rod" wrote

A chiff chaff took a territory at the bottom of the garden on Friday - high
time too, they're usually here by the end of March.
Goldfinches (not strictly migrants) but they came back to our patch today.
Seen nothing else yet.


Whilst the male Blackcap we have had in the garden for months seems to have
gone back to Germany about a week ago, the female is still here constantly
eating the fat balls. They both should have gone some while ago!
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK

Migrants (birds that is)
 

On 15/04/2013 23:20, Bob Hobden wrote:
"Rod" wrote

A chiff chaff took a territory at the bottom of the garden on Friday -
high time too, they're usually here by the end of March.
Goldfinches (not strictly migrants) but they came back to our patch
today.
Seen nothing else yet.


Whilst the male Blackcap we have had in the garden for months seems to
have gone back to Germany about a week ago, the female is still here
constantly eating the fat balls. They both should have gone some while ago!

WHY?
Black caps migrate to the UK for the summer
From RSPB "Although primarily a summer visitor birds from Germany and
north-east Europe are increasingly spending the winter in the UK"

No - it's a lot more subtle than that. Most blackcaps, including UK ones, migrate to Africa for winter. But (I think mid 20th C) some continental blackcaps began migrating W rather than S, taking advantage of garden bird feeders in the UK, and the milder winters in the last 20-30 years. The BTO garden birdwatch survey shows a clear peak for blackcap use of gardens in Jan-April.

The advantage to the birds is that they get back to their breeding grounds earlier. And because of this they tend to mate with other birds who have wintered in the UK, instead of waiting for the African-winterers to return. This is now being reflected in morphology, with the UK-winterers developing shorter, rounder wings, better adapted to maneouverability as opposed to long distance flight, with the possibility that in time there will be two distinct subspecies/species, one migrating N-S, the other E-W.

The blackcaps which migrate to the UK in the summer live in scrub and tend to feed on fruit etc, not needing to visit gardens frequently. But the winter migrating ones eat a much wider diet, including fat, and make a lot of use of garden feeders.

So the chances are, if you have a blackcap in your garden at this time of year, he's a winter blackcap, and will head back to germany for the summer.
The early summer arrivals probably won't be coming to your garden.