About 100000 birds die in the USA all over the world about a close to a million die in the whole world.
It is difficult to provide an exact number of bird deaths caused by car collisions each year, as data collection on this specific issue is limited. However, it is estimated that millions of birds are killed on roads each year due to vehicle collisions. Measures such as reduced speed limits in critical areas and constructing wildlife crossings can help mitigate this impact.
Over 1,000 birds each year die from smashing into windows
About 15 million birds die each year
about 1,000,000 each year
90,000 birds per year
a path many migrating birds follow each year after year
5000000000000
There are hundreds of birds that die each year from crashing into windows. These bird are likely in pain anyway.
about 39-100
170285180588
IF you can extrapolate that across the full year, that would be an average of 35.5 birds killed by each cat/each year. IF you can use that figure for all outdoor cats, you get a calculation of 4.1 billion birds killed each year.
About 1 billion birds are killed in the US every year so possibly, 5 to 10 billion birds per year. As for per day, possibly 1 to 10,000 birds.