For nearly a month, there’s been no honking, no whirr of vehicular engines, no echo of loudspeakers and no clanking of machinery in factories. For nearly a month since the lockdown was clamped, Delhiites have been waking up to the chirping of birds.For nearly a month, there’s been no honking, no whirr of vehicular engines, no echo of loudspeakers and no clanking of machinery in factories. For nearly a month since the lockdown was clamped, Delhiites have been waking up to the chirping of birds.