Birds eye

Birds I have seen/heard in the last couple of days:

1. Blackbird
2. Robin (lots this year)
3. Dunnock
4. Collared Dove
5. Woodpigeon
6. Kestrel
7. Green Woodpecker
8. Starling
9. Lesser Spotted Woodpecker
10. Blue Tit
11. Great Tit
12. Song Thrush
13. Crow
14. Black Headed Gull
15. Magpie
16. Mistle Thrush
    

The majority of these birds can be seen from our garden or local wood and the sad thing about this list is the complete absence of the House Sparrow and Greenfinch. These were in great abundance only a few years ago and now seem to have vanished completely from the garden.
One lonesome male sparrow visited our feeder during hatching time, but has since disappeared. I haven't seen a greenfinch for years. What is going on?
The most common visitor we have is our friendly robin who often took raisins from our outstretched hands to feed his kids, who are now also coming to our little garden. Never seen so many robins.
All part of the changing world we live in, I suppose.