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The return of the Old Man

10,000 Birds

Storks, Ibises and Spoonbills of the World states that “disturbance by local people, tourists, and egg and zoo collectors has similarly reduced the colonies, and more protection is vital”. They are early nesters, but I was unable to tell whether any pairs already had eggs, though I suspected that some might have done.

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Birding Shanghai in June 2023

10,000 Birds

In the slightly frighteningly named journal “Science of The Total Environment”, there is a paper on organochlorine compounds in Purple Heron eggs nesting in sites located around a chloralkali plant (Ebro River). Summary result: relevant chemicals emitted by the plant can be found in the eggs.

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Birding Chongming Island in summer

10,000 Birds

Another puzzling thing to me, as for me, the ideal number of people to live with would be somewhere between zero and one but definitely not above 1. According to the HBW, when breeding, male birds do most of the incubation and parenting while females often leave the nest up to one week before the eggs hatch. End of side note.

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Birding Shanghai in July 2022

10,000 Birds

I have written about the interesting sex life of these jacanas a few times already (short version: female mates with male, lays a bunch of eggs for him to incubate and raise the chicks, leaves him, finds another male, repeat). Apparently, after a male first mates with a female, he throws out the first one or two eggs she lays in their nest.

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