Popular, proven, best-selling format: This is Adventure’s 45th Birds of field guide—the others are all proven sellersMarket: According to the U.S. Fish and Wildlife Service, about 20% of the population are active bird-watchers, spending more than $40 billion on the hobby, annuallyNot intimidating—geared toward the average bird-watcher with species organized by color for easily identifying birdsTekiela is a full-time naturalist, traveling the country to gather data and take photos; his followers...
