Tours and events aimed at attracting both beer nerds and bird enthusiasts are popping up all over the country, attracting bearded microbrew lovers, field-guide-wielding bird buffs and folks with a passion for both suds and sparrows. Bird-and-beer happenings are taking place from Los Angeles to Minneapolis to Hampton, New Hampshire.

Beer and bird hobbyists say they are united by their mutual love of minutiae, rarity and variety, whether searching for an Indian peafowl or a limited release of India pale ale.

Typically, the trips begin with a hike and end at a brewery. One of the more successful tours is “Birds On Tap Roadtrip,” located in beer-loving, bird-rich Maine and now in its second year.

“There happen to be a lot of people who like birds who like beer — we’ve analyzed this,” said Derek Lovitch, who leads Birds On Tap Roadtrip tours. “And then, after the third or fourth pint, we really analyze this.”

Birds On Tap Roadtrip is coordinated by Freeport Wild Bird Supply, which is run by bird nut Lovitch and his wife, Jeannette. They partner with Maine Brew Bus, a lime green bus that shuttles people to the state’s many breweries and serves as a kind of Mystery Machine of Maine beer. The tours are $65 — libations are included, but binoculars are not.

This November’s tour was “Fall Ducks and Draughts,” a chilly march around Sabattus Pond on the hunt for waterbirds including hooded mergansers, common goldeneyes, buffleheads and green-wing teals. All were located, and the group of about a dozen hearty birders then departed by bus for trips to Baxter Brewing in Lewiston and Maine Beer Co. in Freeport.

Participants agreed there was no harm in having a lager along with the loons. (Though they actually saw only one loon.) Brandon Baldwin, 40, of Manchester went with his mother, Carole Baldwin, 73, of Skowhegan, and said the trip appealed to both of them.

“She’s an avid birder who likes beer. I’m an avid beerer who likes birds,” he said. “It seemed like a perfect crossover.”

Smuttynose Brewery in Hampton, New Hampshire, hosted a bird walk and brewery tour on the brewery’s own grounds. And in the Pine Barrens of New Jersey, people met for a hiking and birding tour of Black Run Preserve in Evesham Township followed by tours of Berlin Brewing Co., Lunacy Brewing Co. and Flying Fish Brewery.

Some of the trips are organized by private companies and nature societies and others are the product of local meetup groups that form online. Prices vary from nothing to about the price of a pro football ticket.

“It allows us to reach another different demographic,” he said. “There’s a lot of people who are not necessarily there for the beer. They are there for the birds. And then there are others who are not there for the birds — they are there for the beer.”