Post by matt on Mar 8, 2022 14:17:52 GMT
Bit quieter here too, Pete. I do think there is something to the theory that they inspect and choose, and then perhaps hang back until they get whatever signal they need to start nesting. For me that has always meant a quieter March than Feb, then nesting kicking off in April, but it does seem to vary a lot over the country and (another theory of mine!) by local food source. E.g. if they are planning to feed the chicks on caterpillars on new tree leaves, then that will drive nesting time to some extent. I'm pretty sure most of my local BTs forage extensively in the nearby oak trees, and they are later in leaf than some other species. Hence things generally on the later side for me, but quite a bit earlier for others - even people up North!