Monsoon deluge

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It has been raining all day, so the plans for using time over the weekend for photography and observations of the Purple moorhens went bust.

I did remember that I had taken some panaromic photos of the lake in question, so here goes sunset at Vibhutipura lake.



As you can see, the lake is covered with aquatic plants which has made it a haven for birds that like to walk on water :)

More to come!

Habitat disturbances

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The lake I'm observing the Purple Moorhens is an urban lake/park which has recently been cleaned up. The periphery of the lake has been flattened into a walk-way which attracts quite a few neighborhood residents and fitness enthusiasts.

Mornings and evenings do seem to be especially crowded with dog-walkers, joggers, and cyclists trying to make most of the narrow pathway around the periphery of the lake.

Given the monsoon, and the overall rise in the lake water levels, there seems to be some illegal fishing activities that also go on towards the evenings.

Stray dogs (few dozens of them around the lake) are definitely another deterrent for the birds to come closer to the banks for easier observations.

The birds though seem to be enjoying themselves, and have made this lake their home.

/end of rant

Evening : 6 pm

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Observed around 8 individuals slightly further away to the lake edge than I would have preferred [Note to self : carry binoculars]. This could be due to the human activity (walking/jogging) along the banks of the lake (this path has recently been converted into a walk-way, and does attract quite a few people out for an evening stroll).

Feeding 
Most of the individuals observed were feeding, by walking on what looks like water hyacinth (Eichhornia crassipes) and picking at the base of them every 10-15 seconds. Every few minutes, they would also casually look around to ensure no predator, nor competitor was around.

The water body is pretty much covered at this point with some aquatic plant or the other. Two seem to be the most abundant. One is a water hyacinth. Unsure about the other one. Will post pictures in future posts.

Groups 
Most of the birds were in pairs or groups of three. Occasionally, another bird would come close to the group, only to be chased away, without too much effort. While the behavior did seem like territorial fights, will need to observe for longer sessions.

Other birds 
Noticed three other types of birds sharing the space with the Purple moorhens. These were:
- White-breasted waterhen
- Pheasant-tailed Jacana (in breeding plumage)
- Common coots

While the white-breasted waterhen seemed solitary and was inconspicuous for the most part, the pheasant-tailed jacana did seem more bold, and was out in the open, similar to the purple moorhens, feeding.

Incident

I did see a open wing dance (can't describe it any better) by one of the birds. One bird that flew into a group of two feeding individuals opened it wings halfway, bent it head downwards and did a 3-4 feet of dashing behavior. The reaction by the other two was to scatter around and make few grunting noises. They seem very disinterested in the whole incident, and all three of them went back to feeding right after.




Coursera : Animal Behavior MOOC

Welcome to my assignment on Animal Behavior, for the coursera Animal Behavior MOOC.

You can find more about it here: https://class.coursera.org/animalbehav-003

The species I have chosen to observe and learn from are the Purple Moorhens (as is obvious from the name of the blog :) )

The plan is to observe these in the local lake (vibhutipura kere) where I've seen about half a dozen of them. The monsoon might not be very helpful, but the plan is to observe them at least for an hour alternate days. Here's hoping the weather doesn't play foul!



And for those of you who were wondering, the course is terrific, and challenging!