By peoplestaff225
Updated March 11, 2010 09:00 AM
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Boo!

Alyson Hannigan‘s little lady, daughter Satyana Marie, pokes her head out to peek at the paparazzi during a stroll around Brentwood, Calif. on Sunday.

Later this month, the How I Met Your Mother star and her baby girl will celebrate their birthdays — the actress will turn 36, while Satyana will be 1-year-old on their shared special day, Mar. 24th.

Mom recently Tweeted, “Gotta go get Birthday invites for my baby’s 1st party! Where did that year go?!?”

Dad is actor Alexis Denisof, Alyson’s husband of six years.