A pair of flamingos were observed caring for their young chicks at the Celestun Nature Reserve on Mexico's Yucatan peninsula. Photographer Zeren Gu documented the birds engaged in communal chick-rearing, a practice where parents share the responsibility of feeding and tending to the young.

Gu, who hails from Philadelphia, aimed to capture candid wildlife moments that reveal natural behaviors. The images show adult flamingos, distinguished by their black-and-white bills and long legs, bending down to interact with approximately a dozen grey-colored chicks. The adult birds are seen feeding the young through their specialized bills, which will eventually develop the iconic flamingo curve as the chicks mature.

Flamingos acquire their distinctive pink coloration from pigments found in the algae and brine shrimp that form their diet. As the chicks grow, their bills will take shape, and they will also develop the habit of standing on one leg to help conserve body heat, a common behavior among adult flamingos.