Photo: Ian Westcott/Flickr

UPDATE: We've narrowed down the entries to these three.

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

Photo: Vincent van Dam/Flickr

UPDATE: We've narrowed down the entries to these three. Vote for your favorite!

Every week we post a funny animal photo that’s begging for a caption, like this shot of Muscovy ducks (click through for more on these curious creatures). Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

Young masked booby on Norfolk Island. Photo: Jim Marshall/Flickr

UPDATE 6/3/2013: This chick inspired a lot of funny captions—thanks to everyone who entered!  We've narrowed it down to these three entries. Vote for your favorite below!

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

U.S. Fish and Wildlife staff banding a tundra swan in the Willamette Valley National Wildlife Refuge Complex. Photo: George Gentry/USFWS, via Flickr

UPDATE: It's time to choose the winner!

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Monday to enter your suggestion (click “Read more” below). On Tuesday we’ll choose our three favorite captions and list them under the image.

Photo: USFWS/Flickr

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

Photo: Chuck Rogers/Flickr

UPDATE: Choose the winner!

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

A peregrine falcon chick, born in a nest box atop NYC's Throgs Neck, being banded by a wildlife specialist with NYC Department of Environmental Protection. Photo: MTA/Patrick Cashin/CC BY 2.0

UPDATE: Choose the winner!

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

Photo: Francisco Martins/CC BY-NC 2.0

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

Photo: Raja Sambasivan/CC BY-NC 2.0

UPDATE: We've narrowed down the entries to these three. Which do you think is funniest?

Every week we post a funny animal photo that’s begging for a caption. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.

Belugas are born gray and turn white as they mature. Photo: myprins/CC BY-ND 2.0

UPDATE: We've selected the finalists, now it's up to you to choose the winner!

Every week we post a funny animal photo that’s begging for a caption, like this shot of a young beluga and a gull. Join in the fun! You’ve got til 11:59 pm (Eastern time) on Sunday to enter your suggestion (click “Read more” below). On Monday we’ll choose our three favorite captions and list them under the image.