Birds of Different Feathers

I have lived here for 6 years now. In the last two years, I am seeing more varieties of birds coming to our estate. I am wondering if the new Sengkang Gardens have something to do with this welcoming trend. Before, we get only mynahs and sparrows. Occasionally, there may be a kingfisher or black-naped oriole. This morning, I have a pair of olive-backed sunbirds sipping nectars from our heliconias and what I think is a thrush. We have plenty of doves along the road. I also think getting rid of crows help other species to survive and show up as crows are quite aggressive.