WASHINGTON -- It's hard to know if you should feel worse for the kids or the birds.
The leaflet from the People for the Ethical Treatment of Animals is titled, "Eggs Are Better Lost Than Found" and reads, in part, "Eggs come from millions of chickens who spend their whole lives locked inside small cages in dark buildings. They never get to be out in the sunshine, walk around, or even stretch. These places are called 'factory farms,' and they are mean to chickens."
The pamphlets, designed using "kid-friendly language" according to one PETA employee, and which will be given out outside the White House, also go on to explain how some male chicks are discarded alive at birth since they don't produce eggs.
About 30,000 kids and parents -- along with the First Family, cabinet secretaries, costumed super-heroes and some yet-to-be-announced performers -- are expected at this year's egg roll. Activities during the day will include cooking demonstrations, sports, hunting for hidden eggs and the egg roll itself, a race to prod brightly-colored eggs across the White House lawn using wooden spoons.
This year marks the 134th anniversary of the event, which used to be held on the Capitol grounds until the late 1870s when Congress, worried about damage to the grass, passed a law ending this tradition. President Rutherford B. Hayes moved the roll to the White House lawn in 1878.
Here's a slideshow of White House Easter Egg Rolls through the years:
Children cheerfully play on the South Lawn during the celebration.
A child hugs the Easter Bunny during the festivities. The first official White House Easter Bunny started in 1969, when one of First Lady Pat Nixon's staffers decided to don the costume. It has become an important part of the event ever since.
Children use spoons to roll Easter eggs down the South Lawn to the finish line.
A statue of Bo, the Obama family dog, is seen during the annual Easter egg roll April 25, 2011 on the South Lawn of the White House in Washington, DC.
Thousands of eggs are dyed by White House chefs each year and used for the races and egg hunts.
Warren Sonnemann grins as he holds up the prize basket he received for winning the Easter Egg Roll. April 2, 1923.
Mrs. Coolidge exhibits her pet raccoon [Rebecca] to crowds of children gathered for Easter egg rolling.
US President Barack Obama and First Lady Michelle read a book to children as Bo, the family dog, looks on during the annual Easter egg roll April 25, 2011 on the South Lawn of the White House in Washington, DC.
US President Barack Obama tries to hit the ball between his legs as he plays with tennis legend Chris Evert while participating in the 2011 White House Easter Egg Roll at the White House in Washington, DC, April 25, 2011, which saw nearly 30,000 visitors from around the nation.
Children participate in the 2011 White House Easter Egg Roll at the White House in Washington, DC, April 25, 2011, which saw nearly 30,000 visitors from around the nation.
First lady Michelle Obama watches a cooking demonstration by chef Jacques Pepin with Al Roker and Kelly Ripa at the White House Easter Egg Roll on the South Lawn of the White House on April 25, 2011 in Washington, DC.
Juliana Bird (L), 6, and Rachel Mitchem, 7, of Springfield, Virginia, participate in the White House Easter Egg Roll on the South Lawn of the White House April 25, 2011 in Washington, DC.
Canadian pop star Justin Bieber performs during the Easter Egg Roll on the South Lawn of the White House April 5, 2010 in Washington, DC.
US President Barack Obama and First Lady Michelle Obama and daughter Malia (L) walk to the South Lawn for the annual Easter egg roll April 25, 2011 at the White House in Washington, DC.
The Easter Bunny looks out from the Truman Balcony during the Annual Easter Egg Roll on April 5, 2010 on the South Lawn of the White House in Washington, DC.
One-year-old Macie Zehring from Rayford, North Carolina, carries an easter egg during the annual White House Easter Egg Roll hosted by US President Barack Obama on the South Lawn of the White House in Washington, DC, April 5, 2010.