By peoplestaff225
November 03, 2008 02:30 PM

Julianna Margulies and 9-month-old son Kieran Lindsay — whose 22 lbs. the actress credits with her postpartum weightloss — were spotted out for a Saturday stroll in NYC over the weekend.

Dad is lawyer Keith Lieberthal, whom Julianna, 42, wed in November 2007 in Lenox, Mass.

Kieran rides in a Bugaboo Cameleon in off-white canvas/dark grey ($899).