seasonwatch.in

In Mumbai, it will be rare to find someone who is aware of subtle changes in the season - given that there isn't much change in the city's hot humid weather throughout the year. But if you are a member of this endangered species, then do check out http://www.seasonwatch.in/. They are a small group of citizens across India who keep track of things like changes in the trees, their flowering patterns and birds that populate them.

That's one more reason to gaze fondly at the thick foliage of the tree right outside your window :-)