The exhaustion can then leave them vulnerable to other urban threats. Just one building can cause major problems for birds in the area within one week in 2017, nearly 400 passerines (warblers, grosbeaks, etc.) were caught in the floodlights of a 32-story Texas skyscraper and killed via window collisions. While lights can throw birds off their migration paths, bird fatalities are more directly caused by the amount of energy the birds waste flying around and calling out in confusion. However, as they pass over big cities on their way, they can become disoriented by bright artificial lights and skyglow, often causing them to collide with buildings or windows. Each year during fall and spring migrations, nearly two billion birds travel through Texas navigating with the night sky in one of the planet’s great wildlife spectacles.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |