Extreme Birdwatching: Measuring Change on a Galapagos Island, written by Loree Griffin Burns and illustrated by Jamie Green. mit Kids Press, Candlewick. Penguin Random House. $23.50 ages 8 and up

"What exactly do finches do all day?

The answer depends on what time of year it is. 
In the rainy season, the island comes alive 
with plants and insects, making it suddenly a 
rather excellent place to raise baby finches. 
So adult fortis and scandens get busy with the
hard work of doing that. They find mates, 
build nests, lay eggs, and then feed and care
for the baby finches that hatch from those 
eggs."

We have just begun to welcome the birds back. I have even seen a robin or two. An Alberta clipper, set to dump an unwanted amount of snow on us, is in the forecast. That may have those birds wondering what they are doing here ... as we so often do ourselves at this in-between time of year. Birdwatchers will continue to keep their eyes to the sky in coming days, in hopes returning birds will find places of refuge to wait out the storm and once again enjoy warm sunshine and spring temperatures. 

For Rosemary and Peter Grant, birdwatching is an entirely different kind of pursuit. The two spent decades researching the birds that make their home on the Island of Daphne in the Galapagos Islands. The thing about Daphne is that it is the top of an ancient volcano that is very hard to access if you want to study the thousands of finches that make their home there. Looking down on the inside of Daphne, there are no sandy beaches, and no humans live there. 

The Grants have been visiting the island since the 1970s, and have done amazing research time after time. Nine short chapters, written brilliantly by Loree Griffin Burns, discuss their work from the very first visits. They have carefully studied the two kinds of finches who make their home on Daphne, and nowhere else in the world. It is thoroughly absorbing description of the finches, the lives they live there, the food they eat and how that has impacted the changes they have undergone, and what happened when an unexpected drought forced adaptation in their beaks. There is also a clear discussion in one of the final chapters of natural selection, and finally how their research helps guide today's scientists as they further explore natural selection today. Though the Grants have been retired since 2012, their work on Daphne lives on.

Back matter includes an author's note, a glossary, several lists of resources for those who want to learn more, a list of source notes, and a bibliography. Very impressive and perfect for the stated target audience.