Smiths? More like a Coppersmith Barbet to be precise (please see the Post Script ).
I've been looking everywhere for him but his call seems to come from every direction at the same time, making it difficult to locate him. To make it worse, his green feathers camouflage him so well among the trees where he loves to hang out.
I finally managed to locate him on this gul mohur tree. I was almost startled that this small, dumpy bird, hardly bigger than a sparrow, could produce a call that rings throughout the entire neighbourhood. The almost monotonous call, repeated every second or so (for what can seem like forever), sounds like a coppersmith hammering on a sheet of metal ... and that's how he got his name, Coppersmith.
Incidentally, he doesn't open his beak when he's calling out. Instead, the skin of the throat puffs out with each note. That, coupled with the difficulty I had in pinpointing his location, convinces me that we have an accomplished ventriloquist here!
The Coppersmith is one colourful bird ; he has a crimson forehead and a crimson patch like a necklace too. And a yellow face and throat with a black stripe near his eye. It's almost as if he's trying to make up for his dumpiness and stubby tail !
The Coppersmith Barbet is considered one of our more common birds in urban gardens but I'm sure not many people in Mumbai have spotted him. His ringing "tuk-tuk-tuk..." calls, on the other hand, must be familiar to everyone who's lucky enough to have a tree or garden in the vicinity!
I wish I could have shared clearer photos with you but if you go over to Wiki, there are some excellent ones there.
Or even better, head over to Walk The Wilderness and see these absolutely stupendous photos of the Coppersmiths.
Post Script : This post has been edited . I had an e-mail from a reader who informed me that the Coppersmith Barbet and the Crimson throated (fronted ) Barbet are different birds. Now, since I had got the information for this post and the ID for the bird from the book 'The Book of Indian Birds' by Dr. Salim Ali, I was quite reluctant to believe this correction. (for those who are not familiar with his name, Dr. Salim Ali was considered the leading light of ornithology in India).
So I double-checked with Thomas at 'Walk The Wilderness' who has posted about Coppersmiths (see the link above) and he confirmed that what I've posted here is obviously the Coppersmith Barbet as the Crimsonfronted Barbet does not have yellow around the eyes or on the throat.
So there you have it ... this is the Coppersmith Barbet but he doesn't answer to the 'Crimsonbreasted / throated / fronted' tag. I'm so sorry for the confusion.
Thank you so much, Nits, for pointing out my mistake. And thanks to you too, Thomas, for taking the trouble to clarify my doubts.