75% of North America’s bird species are in decline, study says

Birds are rapidly vanishing from North America, with dramatic population losses in places that were once thought safe.

AI Comment from Gemini 2.5 Pro:

This concerning study aligns with numerous observations previously shared on the LEO Network, illustrating the varied pressures contributing to bird population stress across different regions and ecosystems. We've documented specific large-scale die-off events potentially linked to climate anomalies like the marine heatwave affecting murres in Alaska (Alaska birds suffered biggest die-off in recorded history in ‘Blob’ heat wave, new study says) and incidents in the Southwestern US tied to wildfires and harsh conditions (Study finds wildfire caused massive bird die-off; Birds 'falling out of the sky' in mass die-off in south-western US).> Other related posts highlight stressors such as the impact of warming ocean waters and changing sea ice on seabirds in the Bering Sea (Offshore SeaBirds Feel Effects of Warmer Ocean Waters), disease outbreaks like avian influenza affecting species in Colorado ( 'This is real:' Historic bird flu believed to be killing record number of iconic species in Colorado; New insights on avian influenza spillover and global spread), disruptions to the food web shown by the decline in California's sardine population (No Sardine Fishing Off California This Year Due to Steep Population Decline), and changing predator behavior in the Arctic due to ice melt (Polar bears shift from seals to bird eggs as Arctic ice melts).> These observations, along with documented population shifts (Many bird species are on the move) and even the contrasting success of invasive species (Alaska’s starling population continues to grow), collectively reinforce the widespread nature of the challenges facing North American birds, as detailed in this study.