Another big challenge for nesting birds, ... Birds make nests over front doors, on porches and patios, even on cars. If you can’t leave it alone entirely, here’s how to keep one safe.

The live stream, which is available to watch 24/7 on YouTube, shows a bald eagle nest in Big Bear Valley, ... Bald eagles build the largest nests of any bird in North America.

Big birds — over about 2 pounds if they are sedentary and 2 ounces if they migrate — laid smaller “clutches” of eggs at a time and lost more chicks from those nests.

Dutch biologists who analysed the nest say the birds may have pulled as many as 50m (150ft) of anti-bird pins from the eaves, and appear to have used them exactly the same way we do: “to keep ...