Archive · 6 Nov 2025
Hawaii Releases Half a Million Mosquitoes Weekly to Save Native Birds
Imagine there are too many mosquitoes in Hawaii, and these mosquitoes are making the native birds sick.
Scientists are releasing a lot of boy mosquitoes that can't have babies.
These special boy mosquitoes mate with the regular girl mosquitoes, but their eggs don't hatch.
This is like a special trick to make fewer mosquitoes so the baby birds can grow up healthy.
They are using drones to drop little pods of these special boy mosquitoes.
It's a new way to help protect the pretty birds before they disappear forever.
Hawaii is releasing 1 million sterile male mosquitoes weekly to combat invasive species harming native birds.
The sterile mosquitoes carry a bacteria that stops wild females' eggs from hatching upon mating.
This initiative aims to protect endangered native birds, like honeycreepers, from avian malaria.
Drones are used to drop biodegradable pods containing the mosquitoes, a safer and more efficient method than previous helicopter use.
The program, led by the American Bird Conservancy, hopes to see results within a year and potentially save the remaining bird populations.
- Who
- The American Bird Conservancy (ABC) and its Hawaii program director, Dr. Chris Farmer
- What
- Releasing approximately half a million sterile male mosquitoes per week in Hawaii's forests.
- When
- Currently ongoing, with results expected in about a year.
- Where
- Maui and Kauai islands in Hawaii.
- Why
- To reduce the population of invasive mosquitoes that spread avian malaria, which is severely threatening native Hawaiian birds, especially honeycreepers.
Supporters of Mosquito Release
Potential Concerns
Ecological Impact
Supporters of Mosquito Release
The release of sterile mosquitoes is a critical intervention to save endangered native birds, particularly honeycreepers, from avian malaria transmitted by invasive mosquitoes.
Potential Concerns
In ecosystems where mosquitoes are native, their removal could potentially disrupt the natural balance, though this is less of a concern in Hawaii where the target mosquitoes are invasive.
- Mosquitoes Released Weekly
- 1 million (500,000 on Maui, 500,000 on Kauai)
- Purpose
- To reduce invasive mosquito populations and curb avian malaria affecting native birds.
- Mosquito Type
- Specially bred male mosquitoes carrying a harmless bacterium that prevents eggs from hatching.
- Native Bird Status
- Once over 50 honeycreeper species, now only 17 remain, most endangered.
- Estimated Time for Results
- About a year.
- Delivery Method
- Biodegradable pods dropped by drones.