DESPITE their innocent appearance, police believe the blond-haired Brady brothers Jayden and Joseph, reported missing from the Tweed, have the skills and help needed to survive in the bush for months.
"They have spent many years of their life in the bush, so they know how to survive," Inspector Bobbie Cullen of Tweed Heads police said.
"They know how to find food and support themselves in the bush."
She had been involved in previous searches for the 14- and 11-year-olds, who police said were removed from their mother's Tweed Heads home by their father Daniel early Sunday morning.
"It took us about six months to locate them last time," Insp Cullen said.
After Wednesday's search and sighting of at least one of the brothers in bushland near Tallow Beach, Insp Cullen said police believe they may have relocated.
"They're sporadic; they move their campsites from Byron Bay to Mullumbimby to Cabarita," she said.
"They move all the time, because when we go in and search one area, they pack up and move and go to another location.
"That's why it's so difficult for police to locate them."
Insp Cullen said police believed the boys were being helped by their 17-year-old brother, who lived in the Byron Bay area.
"Their older brother gets the food and money and does stuff in town for them because he's not the subject of police or DOCS concerns," she said.
"He does go out in the community on a daily basis and is seen all the time."
Insp Cullen said that with access to food and money, the brothers could live in the bush for months.
She dismissed rumours the family was involved in a cult.
"The people's personal beliefs are somewhat different to ours, but I wouldn't say they are in a cult," she said.
Jayden and Joseph are thin and 120cm to 140cm tall.