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Windmills kill lots of birds and bats.

That's a lie, so you are a liar. They used to, but then they built them bigger so they could run slower and now they are a barely significant source of bird deaths.

The real problem with large birds are the power lines, and most forms of power come with power lines. For small birds, it is cats and buildings.
http://www.sibleyguides.com/co...

Seems the biggest killer of large birds are power lines, at least in this article from 2003, http://www.sibleyguides.com/co...
The biggest killer around here of large birds may well be bullets and shot. The lakes are full of them and birds eat them, they go into the crop and bird gets lead poisoning.

If you have evidence that turbines disproportionately affect certain species, please cite it.

Otherwise, this chart shows that windows, communication towers, and even high-tension wires each kill thousands of times more birds annually, and those things are everywhere.

Only about 70% of migratory birds are surviving one annual migration at the moment.

In 2003, wind turbines killed 33,000 birds a year. Glass windows killed 97 million.

The mass extinction of birds is currently on the way.

Due to habitat loss. Wind turbines don't even register on the scale.

Loosing large birds gliding magnificently above a town is the same loss as loosing the trees, bees, rivers, etc.

That's "Losing". To your point: trees are necessary for temperature control and erosion resistance. Bees are necessary to pollinate fruit trees. Rivers power dams and harbors fish. Large birds... they eat small animals, just like foxes, cats, snakes, wolves and bears. They're not necessary.

Limiting power consumption via LED lamps,

CFL's, which people already use, are almost as efficient (8-12% vs. 8-15%). Lighting is only 7% of electric usage anyways.

lighter vehicles,

99.85% of cars don't even use electricity.

smaller heated (air-conditioned) areas in houses

Heating is usually natural gas. But even if you include it, residential heating plus air conditioning only accounts for 6% of all energy use.

...could produce more than enough electricity for decades

Yeah no. Not when the world population is set to reach 8 billion by 2025 (a 14% growth).

Thanks for the citation. It's hard to find good numbers for bird death causes, but I agree that source isn't good enough. Still, the main point I was trying to make is that a few thousand birds are insignificant next to the vast numbers killed by everything else in our society (even power lines apparently kill millions).

How much is the value of the lives of the thousands of eagles and other birds killed by windmills every year. Or don't they count?

Yawn. http://www.sibleyguides.com/co...

Save a bird! Throw in a couple hundred Windows!

That's a long post, but I'm not sure if you've got the point, which is, you can't lump all birds together. If a few thousand sparrows die to cats (or windmills), no big deal. But if a few hundred California condors die to windmills, then we have serious problems.

So we shouldn't build wind-turbines in Ohio, because of Californian condors? Anyway, collisions with power-lines, electrocutions (not the same) and poisoning (esp. lead) are at least equal a problem for condors as wind-turbines.

California Condor recovery team stated that lead poisoning was the primary cause of the condor population decline over the last 50 years. This lead in the form of bullets and shot and fishing sinkers is ingested by the birds, ground up in the gizzard and absorbed by the body.

http://www.sibleyguides.com/conservation/causes-of-bird-mortality/

Cats kill at least an order of magnitude more birds than windmills do.

And windows kill even more: http://www.sibleyguides.com/conservation/causes-of-bird-mortality/

We know that Wind Energy is responsible for the deaths of lots of protected birds.

Wrong.

http://www.sibleyguides.com/conservation/causes-of-bird-mortality/
http://science.howstuffworks.com/environmental/green-science/wind-turbine-kill-birds.htm

Try this. It's a graph of different causes of bird mortality with some references.