{
  "id": 1936017,
  "title": "Wildfire smoke delays breeding and alters reproductive outcomes in cavity-nesting songbirds",
  "url": "https://urgent.news/2026/08/19/wildfire-smoke-delays-breeding-and-alters-reproductive-outcomes-in",
  "topic": "world",
  "section": "World",
  "published": "2026-08-19T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.08.18.745532v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Smoke from spring boreal wildfires increasingly impacts eastern North America, exposing breeding birds to hazardous air pollution that may impact reproductive outcomes. Using data collected in 2018-2025 from 70,979 monitored nests of four widespread cavity-nesting songbirds, we found strong evidence that smoke greatly delays egg laying and can extend incubation and nestling duration. We further…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}