Angry birds

Jungle babbler in Pench National Park

The jungle babbler (Turdoides striata) is rather common. You can see them easily in any jungle or copse of trees near farmlands. They travel in flocks of several individuals which chatter constantly with each other. Listen to their constant calling, and you can follow the sound to see them hopping from branch to ground and back again, looking for insects to eat. They are supposed to have beautifully coloured eggs, but I’ve neither seen an egg, nor a nest.

The uniform grey specimens with yellow beaks which we saw in and around Pench National Park belong to the subspecies T. striata orientalis. These are the quintessential angry birds. They look so much like some of the birds in that game that I wonder if the creators took inspiration from these birds. Apparently they coexist with T. striata somervillei, which are a little darker and have a rufous rump and tail. I didn’t notice any, but they could have been around in Pench.

Jungle babbler in Pench National Park

I’ve most often seen these birds flit about in the semi-darkness beneath trees with a heavy canopy, making it hard to photograph them. I was lucky with these specimens. It seems that the more birds there are in a pack, the larger the area they commonly use for feeding. I saw the individuals in these photos perhaps just after their breeding season. A large fraction of the female chicks (but less of the males) usually leave the flock at the end of a year. As a result, flocks are a mixed group of related and unrelated individuals. The related birds would usually be the males. This means that territory is inherited by males within a flock!

The mixture of genetically related and unrelated birds in a flock would also make babblers an useful group for studying the spread of altruism. Indeed, non-breeding members of the group share time in incubating eggs, although they do not participate in the building of nests. Are these helpful non-breeders related to one of the breeding pair? I don’t know of a study.

Many such unanswered questions make the babblers an interesting group of birds for further study. DNA analysis indicates that the group as a whole may have evolved around 5 to 7 million years ago in the middle east. From here the group probably radiated out: one branch into Africa and another into southern Asia. Understanding the natural history of the evolution of families may eventually depend on our understanding babblers better. In fact, angry birds defending their eggs may not be such a bad metaphor for babblers.

Author: I. J. Khanewala

I travel on work. When that gets too tiring then I relax by travelling for holidays. The holidays are pretty hectic, so I need to unwind by getting back home. But that means work.

6 thoughts on “Angry birds”

  1. Interesting. Perhaps they are not just angry but also look fearless. My experience with them in Ranthambore and Sariska tells that they are not at all afraid of human presence and don’t just fly away on getting closer, just like the all famous tree-pie!

    Liked by 1 person

    1. Yes, you are right. Many birds and animals in Ranthambore seem to have got used to humans, and are not quite wild anymore. Wild pigs, for example, are extremely shy in most other parks , but not in Ranthambore.

      Liked by 2 people

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