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Birding Hongbenghe, Yunnan (Part 2)

10,000 Birds

In Grey-backed Shrikes (at least those breeding on the Tibetan plateau), the eggs laid during one breeding attempt get larger with time – presumably an attempt to at least partly overcome the disadvantages the last chick faces ( source ). I lowered the volume and after a while they got used to it and slowly went back to sleep.”

Burma 183