It does help them if they have proper feed:
quote: studies have shown that birds making it through the winter in better physical condition see those benefits carry over into the nesting season. Bird feeding produces significantly earlier egg laying dates, larger clutches of eggs, higher chick weights and higher overall breeding success across a wide range of bird species2,6.
studies have shown that birds making it through the winter in better physical condition see those benefits carry over into the nesting season. Bird feeding produces significantly earlier egg laying dates, larger clutches of eggs, higher chick weights and higher overall breeding success across a wide range of bird species2,6.
https://blog.nature.org/science/2015/01/05/winter-bird-feeding-good-or-bad-for-birds/
