Rainbow loikeets from the Northam and Toodyay area have been removed by the Department of Primary Industries and Regional Development over the past fortnight.
The move follows community reports of the birds.
DPIRD said further control activity is planned for the Northam area.
The public are told to keep a lookout and report rainbow lorikeets in Avon region.
DPIRD biosecurity officer Brett Scourse said the lorikeets are a pest.
“This bird can be an agricultural and urban pest,” he said.
“They can be habitual, returning to the same feeding and roosting areas, daily.
“This can help in their detection by discerning members of the community.
“The birds are often seen and heard feeding on flowering and fruiting trees early in the morning.
“They are noisy and have a call distinct from local native parrots.
“They are also known to foul vehicles and outdoor living areas and compete aggressively with local native birds for food.”
Mr Scourse said rainbow lorikeets are identified by their purple head, orange beak and breast, purple belly and yellow collar.
Toodyay residents took to Facebook past week to notify others in surrounding Shires of the removal of the birds.
“Yesterday the Deptartment sent a person to eradicate [rainbow lorikeets], 13 were removed from Toodyay near the Shire office and a further 15 were removed from other areas,” said Brian and Robyn Foley on the Toodyay Community Forum.
To report a sighting of a rainbow lorikeet or any other unusual bird, use the department’s MyPestGuide Reporter app or contact the department’s Pest and Disease Information Service on 9368 3080 and firstname.lastname@example.org.