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The species is a cooperative breeder – chicks from previous breeding attempts help bringing up the next batch of chicks, like baby-sitting teenagers, though the latter are not related to the kids they babysit and also mainly do it for money, so I guess these two things are not really comparable at all. ” Hurray for science.
If you have always wondered what the minimum anesthetic concentration for isoflurane and sevoflurane for the Crested Serpent-eagle is, science has an answer. Apparently, some bird photographers think that any human artifacts shown on a bird photo immediately spoil the whole photo. Glad I did not have to watch these.
It seems the ones I got decent photos of are all juveniles – it generally seems to be easier to get photos of juveniles as they have not quite learned to avoid humans. Thank god that this does not apply to humans. Sometimes being a member of the human race feels very embarrassing.
This leaves Shanghai in June with basically just the year-round species and the summer breeders, maybe with a few added ultra-lazy individuals of migratory species. The Black-naped Oriole is one of the most attractive summer breeders in Shanghai. Humans are probably not very popular among these kingfishers.
Not all habitat change is due to humans; there is Chestnut Blight destroying American Chestnuts in the early 1900s, and the more recent Dutch Elm disease. The first three sections are brief, presenting a summary of the bird’s current NYC status (migrant, resident, breeder, vagrant, etc.), Eaton, and John Kuerzi.
These two islands are about halfway between the tip of South Africa and Antarctica in the Subantarctic Indian Ocean, have had relatively few human visitors, and are primarily inhabited with some of the rarest seabirds in the world and a smaller number of mammals.
Azure-winged Magpies are cooperative breeders, and it seems that there is a connection between having a larger repertoire of calls and being a social species (me, not being very social, I usually get by with just three different grunting sounds). for a sample of more than 800 species ( source ).
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