Never too late! From a hot summer in 2009 spent in the lab molecularly sexing pied flycatchers to a 2026 paper 🐦
Using 2,759 sexed nestlings (1997–2018) tracked through 2023, we show male attractiveness & annual rearing conditions increase the proportion of sons in broods
🔗 doi.org/10.1016/j.an...
