Losing hope that they'll fledge today (before the overnight severe storms put their tree at risk of lightning), as most birds fledge before noon and it's nearing 5PM
But early fledging is correlated with predation risk and these have fewer predators than most birds
academic.oup.com/beheco/artic...
Lay Summary. Nestling birds tend to fledge within 6h of sunrise. Why this occurs is unknown but may be a response to predation risk faced by young birds. W