Did you know that plastic lawn flamingos are considered endangered? Anyway, here are this weekend's subway changes.

1 trains will not run in either direction between Van Cortlandt Park-242 St and South Ferry from 11:30 p.m. Friday to 5 a.m. Monday.

Wakefield-241 St bound 2 trains will make express stops from Chambers St to 34 St-Penn Station and run local from Times Sq-42 St to 96 St from 11:30 p.m. Friday to 5 a.m. Monday. Trains on the Flatbush Av-Brooklyn College bound track will run local from 96 St to Chambers St during that time.

3 trains will operate to/from New Lots Av, replacing the 4 train in Brooklyn, from 11:30 p.m. Friday to 5 a.m. Monday. New Lots Av-bound trains will make local stops from 96 St to chambers St during that time, while Harlem-148 St bound trains will run local from Times Sq-42 St to 96 St.

4 trains will not run in either direction between New Lots Av/Utica Av and Brooklyn Bridge-City Hall, with that change in effect from 11:45 p.m. Friday to 5 a.m. Monday. Trains will run local between 125 St and Brooklyn Bridge-City Hall during that period.

5 trains will not run in either direction between Bowling Green and Grand Central-42 St, with that change in effect from 6 a.m. to 11 p.m. on Saturday, and again from 8 a.m. to 11 p.m. on Sunday.

Flushing-Main St bound 7 trains will run express from Queensboro Plaza to 74 St-Broadway, starting at 3:45 a.m. Saturday and ending at 10 p.m. Sunday.

Inwood-207 St bound A trains will run express from Euclid Av to Broadway Junction from 11:45 p.m. to 6:30 a.m. Friday to Sunday, and again from 11:45 p.m. Sunday to 5 a.m. Monday.

168 St-bound C trains will run express from Euclid Av to Broadway Junction from 6:30 a.m. to midnight on Saturday and Sunday.

D trains will reroute in Manhattan and Brooklyn from 10:30 p.m. Friday to 5 a.m. Monday. D service will operate between Norwood-205 St and 59 St-Columbus Circle, then reroute along the A line to/from Jay St-MetroTech, then reroute again along the F line to/from Stillwell Av. Trains will run express in Manhattan.

Jamaica Center Parsons/Archer-bound E trains will run express from Queens Plaza to Forest Hills-71 Av from 11:45 p.m. to 6:30 a.m. Friday to Sunday, and again from 11:45 p.m. Sunday to 5 a.m. Monday. Trains on that track will skip 75 Av and Briarwood from 11:45 p.m. Friday to 5 a.m. Monday.

Jamaica-178 St bound F trains will skip 75 Av, Briarwood, and Sutphin Blvd from 11:45 p.m. Friday to 5 a.m. Monday. From 10:30 p.m. Friday to 5 a.m. Monday, F trains will reroute in Manhattan and Brooklyn. F service will operate between Jamaica-179 St and Lexington Av/63 St, then reroute along the Q line to/from Atlantic Av-Barclays Ctr, then reroute again along the D line to/from Coney Island-Stillwell Av. Trains will run express in Manhattan and skip DeKalb Av on days and evenings.

M trains will operate to/from the Chambers St J station from 10:30 p.m. Friday to 5 a.m. Monday.

All N trains will run local in Brooklyn between 59 St and Atlantic Av-Barclays Ctr from 10:30 p.m. Friday to 5 a.m. Monday. Also during that period, trains will reroute along the R line between Atlantic Av-Barclay Ctr and Canal St, stopping at DeKalb Av, Jay St-MetroTech, Court St, Whitehall St, Rector St, Cortlandt St, and City Hall.

Forest Hills-71 Av bound R trains will run express from Queens Plaza to 71 Av, with that change in effect from 6:30 a.m. to midnight on Saturday and Sunday.