Why are there so many kinds of animals? Adaptive radiations like Darwin's finches are the essence of the answer. Jonathan Weiner
Many genes influence the reproductive success of zebra finches. Source: Internet
Petren, Grant, Grant, and Keller proposed that the speciation of the finches occurred in two parts: an initial, easily observable allopatric event followed by a less clear sympatric event. Source: Internet
These small finches, resembling dull goldfinches with dark streaks all over their bodies, are an irruptive species that we typically only see in Maine when spruce cone crops are low across the boreal forest. Source: Internet
Along with finches, humming birds and the like, we do get some rare visitors like the Baltimore oriole, who oddly enough seems to enjoy a drink from the hummingbird feeder and visits it from time to time during the day. Source: Internet
Even Darwin’s famous finches seem to be evolving in response to human activity in the Galapagos. Source: Internet