シジュウカラの巣作り・産卵・育鳥・巣立ち、昨年と今年 Nesting, egg-laying, brood-rearing, and nest-leaving of titmice last year and this year

昨年2023年度の記録では巣作りが3月、産卵とヒナ誕生が4月上旬、巣立ちは一ヶ月後の5月初旬でした。

今年も巣作りが始まっており、親鳥が巣の中に入る時間が長くなっており、3月22日時点での巣作りの状態は写真の通りです。

Last year's record for 2023 shows that nest construction was in March, egg laying and chick birth in early April, and departure from the nest a month later in early May.

Nest building has begun again this year, with the parent birds spending more time in the nest, and the state of nest building as of March 22 is shown in the photo.