* ENVIRONMENTAL FORUM: On March 21, there is to be a forum with DC mayoral candidates focusing on sustainability and environmental issues, at the Boilermaker Shops at 300 Tingey St., SE, from 6 to 8 pm. It has been organized by the local chapter of the Sierra Club along with the Capitol Riverfront BID, the neighborhood group Near Southeast Community Partners and a coalition of multiple groups now operating under an umbrella group called United for a Healthy Anacostia River. The clock is ticking down toward DC Primary Election Day, on April 1.

And, speaking of the river, the Anacostia Riverkeeper group is having a fundraiser on April 3 from 5 to 8 pm. Bring this flyer (and your appetite) to Nando's Peri-Peri at the Boilermaker Shops to help support its efforts to clean up the Anacostia watershed. They'd like an RSVP in advance, for an accurate head count.

* AT THE DRIVE-IN: Presumably in anticipation of their not-as-yet-underway Ballpark Square office/residential/hotel/retail project, developers Grosvenor, McCaffery and Skanska are co-sponsoring with the BID a "Groundbreaking at the Capitol Riverfront Drive-In Movie Weekend" on Friday, March 21 and Saturday, March 22. They are inviting folks to "pull into the converted drive-in movie theater at 1st and M Streets, SE to watch great films and purchase popular DC food truck cuisine." Friday's movie will be Toy Story, and Saturday's will be The Matrix. Both screenings start at 7:30 pm.

* TRUCKEROO: The monthly DC food truck festival is returning to the Fairgrounds at Half and M SE for another year, starting on April 11.

* LA LA LA LA LA: The always successful Opera in the Outfield is back for another year, this time on May 3 with a simulcast of Mozart's "The Magic Flute." Gates open at 5 pm for the variety of "pre-game" activities, and the show starts at 7 pm.

And, I suppose I should mention that, nestled in between these various events, there will also be the Nationals' exhibition game against the Tigers on March 29, and the team's home opener on April 4 against the Braves. Just in case you weren't aware.

Have an event happening in the neighborhood? Let me know.

The neighborhood has come so far that a more specialized type of Tidbits post is now being added to the lineup, to better handle upcoming event announcements. I'm also reconstituting my Near Southeast Events Calendar, down the right margin of the JDLand home page. (And it's a Google calendar, if you want to subscribe to it.)

This is the latest in big-name appearances at the stadium that happen about once a year, following Springsteen, Dave Matthews, and Billy Joel/Elton John in previous years.

I assume Friday's announcement will say when tickets go on sale, but I just couldn't bear to wait that long to post. UPDATE: Tickets go on sale April 12 at 10 am, though American Express card members get their shot starting at 10 am April 9.

If you can't get enough of concerts at the ballpark, the Nationals also announced this week the lineup for their NatsLive free postgame concerts: Blues Traveler on June 8, Thompson Square on July 6, Gavin DeGraw on Aug. 31, and Montgomery Gentry on Sept. 21. The concerts are free for anyone holding a ticket to that day's game.

And, on a slightly different scale, the U.S. Marine Band is going to be free playing weekly concerts at the Yards Park, on Thursdays at 7:30 pm beginning in June and running through August. They'll be set up near the Terraced Lawn Steps, and will be playing "light classics, country music, and popular band favorites."

(Which means you can stroll from the Marine Band's appearances at the Yards Park on Thursday evening right up to Canal Park for the BID's Outdoor Summer Movie Series.)

This is also a good time to mention that I'm not really going to be keeping up with the many smaller events that now go on at the Yards Park, the Fairgrounds, and elsewhere. I'll mention big ones (I think McCartney qualifies as "big") and the series-type events, but otherwise, I'm playing my semi-retired card. If organizations are wanting to get the word out via JDLand about such events, there's always those flashy boxes at the top and sides of all of my pages....

It's free and open to the public without advance tickets, though if you register, you'll have a chance to win a Night at the Kennedy Center package. There's also a pre-show party in the Stars & Stripes club, brought to you by MyTix and Brightest Young Things. More information on all activities and logistics here.

Mozart will of course be the second ancient mastermind of lengthy musical events to have his music blasted from the Nats Park sound system in September, following on the heels of Bruce Springsteen's concert on Sept. 14.

* The I Street McDonalds is going to be getting a makeover, judging by a recently approved building permit.

* Current 6D07 commissioner David Garber has picked up petitions to run for reelection. So far he and Ed Kaminski are the only potential candidates for the two single member districts that cover Near Southeast.

And, in this weekend's events:

* Tonight's Front Flick at Tingey Plaza is The DaVinci Code.

* The Nats are about to start their 12:35 pm Matinee as I type this on Thursday, then they'll play host to the Braves Friday-Sunday. This time around there's a Saturday 1:05/7:05 doubleheader, which includes the second NatsLive concert, with the Wallflowers. (Tickets for each game sold separately, and you need a ticket to the 7:05 pm game in order to see the Wallflowers.) It's a pretty big-time series against Atlanta, so expect big crowds.

* The Fairgrounds has its South on South Capitol Southern Rock festival on Friday and the Capitol GrooveFest on Saturday

* The Yards Park has Jah Works playing reggae for its Friday Evening Concert, then the Taste of Belgium beer/food/music event on Saturday.

* Damn Yankees vs. Nats: This three-day series would be drawing big crowds even if both teams weren't on hot streaks, but now it's a marquee matchup of the first-place teams in the two best divisions in baseball, both on six-game winning streaks. The Nationals are already encouraging fans to allow plenty of extra time to get to their seats, and Near Southeast residents should be prepared for a tidal wave of ballpark-goers. Friday's game starts at 7:05 pm, Saturday's at 1:05 pm, and Sunday's at 1:35 pm.

If you're venturing to the stadium for the first time this season, my Visiting Nats Park page has links for you, like all the parking lots, transit options, food choices, and more.

* Zimmerman's Night at the Park: After their undefeated road trip to Boston and Toronto, the Nats get a day off from baseball tonight, but they'll still be heading to the stadium for Ryan Zimmerman's third annual "Night at the Park" to benefit his ZIMs Foundation, dedicated to the treatment and cure of Multiple Sclerosis. The band Guster will be performing, plus there will be silent and live auctions and most likely the chance to meet a player or two. (I wonder if Gio has gotten a date yet?)

* Tour de Fat: The Yards Park is the launching point on Saturday morning for the Tour de Fat bike event. I think the best way to describe this is to let New Belgium Beer do it: "[I]t is a thrilling rite of passage that includes an unparalleled costumed bicycle parade, New Belgium beer, eccentric entertainment, local food, unusual bike contests and much more." Registration for the free event begins at 9 am, with the parade going off at 10, then multiple other events (like the "Slow Ride") through 3 pm. Wonder what the pinstripe-bedecked visitors heading to the ballpark from Nats Lot W will think of the {other} costumed hordes riding by?

* Movies and Music: And of course there's the BID's weekly events, with "National Treasure" being tonight's Front Flicks Outdoor Movies offering, and the band Shag offering British Rock and covers at Friday's Evening Concert at Yards Park.

(Plus, don't forget that Sunday is Father's Day!)

* Nationals: The Nats arrive home tomorrow to a series with the Braves. On Friday, there will be an attempt to set the world record for the largest all-trombone ensemble (no, really). Saturday brings Pups in the Park #2 along with the first NatsLive post-game concert, featuring Dierks Bentley. More info on the weekend's promotions and specials here.

* Thursday Movie, Friday Concert: Tonight's Outdoor Flick is Sahara, and the Friday Evening Concert at the Yards Park is Carribean Night with Sam'O and JFC.

* Yard Sale: Some Capitol Quarter neighbors are having a community yard sale on Saturday, June 2, on I Street between 4th and 5th, from 8 am to noon.

* Family Day: Another Family Day at the Fairgrounds on Sunday, June 3, from 11 am to 4 pm.

* Wednesday Music: I never received any official announcements on this, but apparently the Wednesday Lunchtime Concert Series started at the Fairgrounds on May 23, each week from 11:30 am to 1:30 pm through Sept. 5.

* Who Was This "Tingey"?: Find out Wednesday June 6 in a lecture at the National Archives.

* Walking Good, Biking Bad: The Navy Yard reminds people that biking is prohibited on the Navy Yard portion of the Anacostia Riverwalk. And the Tales from the Sharrows blog rebuts.

* "Our Parking": Curbside advocacy in action on K Street.

* Armed Robbery Attempt: From MPD: On Saturday, May 26, at approximately 4:10 am, "while in the 300 Block of K Street, SE, a complainant was approached by a suspect. The suspect brandished a handgun and demanded the complainant’s property. No property was obtained. The suspect is described as a black male, 20-25 years of age, wearing a light blue shirt and blue jeans. The suspect was last seen on fleeing on 3rd Place SE." If you have information, call 202-727-9099, or you can text 50411.

* South on South Capitol: The Fairgrounds folks are launching a "South on South Capitol" southern rock concert series, featuring local and regional country and southern rock bands, along with mechanical bull rides (!), food trucks, and the Bullpen bar. The first one is scheduled for May 25, then June 22, July 27, and Aug. 24. (They're all Fridays.) Admission is free.

And, speaking of Fairgrounds, there's a corrected list of dates for their Sunday Family Days, which are just once a month (next one on June 3).

* Science + You: If you've wandered by the southeast corner of the Foundry Lofts building just north of the Yards Park, you may have already seen the Science + You exhibit. It's geared toward kids ages 3-8, giving them the hands-on chance to "become scientists for a day." It's being managed by Living Classrooms of the National Capital Region, and was developed by Kohl Children's Museum in Chicago in cooperation with scientists from Abbott. The web site has lots of photos of the various interactive stations within the exhibit. It runs until Aug. 5, and is open from 12:30-4 pm Tuesday-Friday and 10 am-4 pm Saturday and Sunday. Admission is free.

* Ladies Night: The Nats' first Ladies Night of the 2012 season is Thursday (May 17), and they're going with a "Pretty in Pink" theme along with a Majestic women's apparel fashion show, drink specials, games, prizes, music, and whatnot. VIP tickets are $40 and include access to the party tent at 1st and Potomac from 5 to 7 pm along with special group seating. If you can't make the tent happy hour, you can buy a $25 ticket and enjoy the Scoreboard Pavilion festivities. (The tickets include a $10 concession credit.)

* Bike to Work: Friday, May 18 is Bike to Work Day, and the Yards Park is one of the pit stops, from 7 to 9 am. Alas, the free t-shirts for the first 11,000 registrants have already been snapped up, but you probably already own a t-shirt or two anyway.

* Battle of the Beltways: Be forewarned that the right-near-first-place (!) Orioles are coming to Nats Park for a Friday-Sunday interleague series, and so all three games will probably bring a lot of fans and traffic.

* Third Eye Blind: I mentioned last week about the Wallflowers being lined up for the 2nd of the NatsLive free post-game concerts, and soon after the word went out that Third Eye Blind would be playing the third concert, on Aug. 18 after the Nats play the New York Mets. Dierks Bentley kicks off the series on June 2, and tickets for all three games are on sale. (The concerts are free for game-ticket holders.)

And of course Friday also brings the Yards Park Friday Concert Series, with Justin Trawick performing this week. And, as a heads up, next Thursday (May 24), the Front Flicks Outdoor Movie Series gets underway, with Lara Croft: Tomb Raider.