Children go up to different booths and receive treats and candy from volunteers | Alexa Rogals/Staff Photographer
Attendees wear costumes on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
A child dressed up as the Grinch asks for candy on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
Families walk through a corn maze on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
Attendees go trick or treating on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
Participants ride a haunted hayride on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
Attendees dress up in Halloween costumes on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
A child runs through the corn maze on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
Kids dressed up for Halloween walk into the park on Saturday, Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
Volunteers hand out candy to children on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
Children dressed up in Halloween costumes walk around the park on Oct. 21, during the Boo at the Zoo event at Brookfield Zoo. | Alexa Rogals/Staff Photographer
