Thread: Blue Tit Nest
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Old Monday 20th April 2020, 15:52   #3
King Edward
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Join Date: Nov 2009
Location: Herefordshire
Posts: 552
Quote:
Originally Posted by ThomasW View Post
I also wondered, as they lay an egg a day, why by the time the last one is laid are the earlier ones not stone cold.
The eggs don't need to be kept warm until she starts incubating once the clutch is complete. That way they all hatch together. Some species (e.g. birds of prey) incubate from the start so the older eggs hatch first.
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