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Birds are our unlikely evolutionary connection to the dinosaurs that once ruled our earthly roost. While the great extinctions relegated the lizard kings to bones and oil, they live on in our collective imaginations. But modern avians have closer relatives that don’t get nearly as much attention: other birds who died off in the past few centuries. The Natural History Museum launches a new exhibit, “Once There Were Billions: Vanished Birds of North America” to introduce visitors to a plethora of winged things that used to fly our skies and waddle our shores. Read more >>> The exhibition is on view 10 a.m. to 5:30 p.m. at the National Museum of Natural History, 10th Street and Constitution Avenue NW. Free. (202) 633-1000. mnh.si.edu(Rachel Kurzius)


Protein Bar opened its fourth D.C. area location today at 11 a.m. at 17th and K streets NW. Head over for lunch and try the Buffalo “Bar-ritos.” In case you haven’t visited the Chicago-based chain’s other locations in Ballston, Penn Quarter, and at 19th and K Streets NW, a “bar-rito” is Protein Bar’s trademarked version of a protein-rich burrito. The restaurant was founded in 2009 by Matt Matros after he lost 60 pounds on a high-protein diet. In addition to the quinoa-stuffed ‘ritos, Protein Bar’s menu includes a number of bowls, soups, salads, and chili, plus high-protein shakes. Many of the items are also gluten-free. Protein Bar, 925 17th St. NW. theproteinbar.com. (Jessica Sidman)


Boston punk band Guerilla Toss performs at Comet Ping-Pong with queer hardcore group Peoples Drug and local solo performer Sneaks. 9 p.m. at 5037 Connecticut Ave. NW. $12.

Old Man Canyon, the solo project of Vancouver musician Jett Payne, plays the Black Cat Backstage with Ohio pop act the Modern Electric. 8 p.m. at 1811 14th St. NW. $10.

Singer-songwriter Casey Dienel performs as White Hinterland at DC9. Electronic artist Arthur Loves Plastic opens the show. 9 p.m. at 1940 9th St. NW. $10.

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