1. Learn how to save your dog's life. Brooklyn Bark, in conjunction with BluePearl, will be offering a course in first aid and CPR for pets at the Brooklyn Mutt Show, tought by a Brooklyn Bark Master with the able assistance of Dr. David Wohlstadter! , , 225 Fourth Avenue between President and Union Streets, 12:00 p.m., $50.
2. Spot uncommon birds. There are more than 250 species of birds in Prospect Park. See some of them at this weekly Introduction to Birdwatching every Satuday. This is a great activity for children and adults. , Prospect Park, Prospect Park West and 9th Street, 12:00 p.m., Free.
3. Sample some sturgeon. With Passover getting closer every day, it seems a good time to stop in to sample some clementine and ginger cured salmon, pickled herring with wine sauce and Everything Bagel Twists from Kossar's—that way you can talk about catering your seder with a clear head and a full stomach. , 251 Smith Street between Douglass and Degraw Streets, showings all day, $20.
4. Find out if your train is running ... The F and G trains will be skipping Smith-9th St, 15th St-Prospect Park and Fort Hamilton Parkway, per usual. Jamaica-bound F trains will run via the M from 47-50 Streets to Roosevelt Avenue. Coney Island-bound F trains run via A the from W 4 St to Jay St-MetroTech, according to the MTA.
5. ... And if you have to move your car. Yes. Alternate side parking is in effect, according to the NYCDOT.
About this column: Carroll Gardens information and events you won't want to miss, including the subway and alternate side info each day.