Bird Mite Control: a Cape Town guide

Know what you are dealing with

Most bird mite cases in Cape Town come from nests built in roof spaces, under eaves, behind gutters and in air conditioning ducts by feral pigeons, common (Indian) mynas, house sparrows and European starlings. The mites involved are usually the northern fowl mite (Ornithonyssus sylviarum) and the red poultry mite (Dermanyssus gallinae), both of which are barely visible, around the size of a full stop, and pale or greyish until they have fed, when they turn reddish. They cannot complete their life cycle on people, but they will bite while searching for a bird host. On smallholdings in the Boland, the same mites can move from chicken coops into nearby houses. Rat mites from rodent nests in the roof cause very similar symptoms, so we check for rodents at the same time.

Myths, mistakes and lesser-known facts

Bird nests also feed carpet beetles and clothes moths, so a house with an old nest in the roof can end up with damaged rugs and clothing even after the mites are gone.

In flats and sectional title complexes, nests on a shared roof are usually a body corporate matter. Raising it early with the managing agent avoids months of bites for the top-floor units.

Children's rooms often sit right under the roof, and young skin reacts badly to mite bites. We treat around beds and windows and keep children and pets out until surfaces are dry.

Warning signs

1. A prickling, crawling sensation on the skin, often at night or while sitting near a particular wall or window.
2. Small itchy red bites on the arms, neck or torso that appear after birds have stopped using a nest.
3. Tiny moving specks on window sills, bedding, white walls or the bathroom basin, especially near ceilings and light fittings.
4. Birds seen flying in and out of the roof, gutters or eaves during the spring and early summer.
5. Nesting material, feathers and droppings visible at gaps in the fascia, under roof tiles or around the air conditioner.
6. Symptoms that ease when you leave the house for a few days and return when you come back.

Bird mites are not known to transmit disease to people, but the bites are itchy and the crawling sensation can be genuinely distressing and disrupt sleep for weeks. Scratching can lead to skin infections, and people are often misdiagnosed or told the problem is in their head, which adds to the stress. The nests themselves bring other problems, including droppings that damage roofs and gutters, blocked downpipes and other insects such as carpet beetles that feed on old nest material.

Can you do it yourself?

Spraying the bedroom yourself might bring some relief, but it will not fix anything while the nest stays in the roof. Getting into roof voids and handling nests full of droppings and mites is not pleasant or particularly safe without the right protection. Our opinion is that this is one problem worth handing over, because the fix is mainly about finding and removing the source.

Seasonal pattern

In Cape Town, pigeons can breed almost all year, but mynas, sparrows and starlings nest most heavily from late winter through spring and early summer. Bird mite complaints usually peak a few weeks after the chicks leave the nest, which tends to be in spring and early summer. Warm weather also speeds up the mites' activity, so problems are most noticeable in the hotter months.

Prevention checklist

• Watch your roofline in spring; if you see pigeons or mynas going in and out of a gap, have it dealt with before they lay eggs.
• Fit mesh or plastic closures under the first row of roof tiles and over gaps in fascia boards.
• Keep gutters clean so birds are not encouraged to build nests in them.
• Do not feed pigeons near the house, as a reliable food supply keeps them nesting on your roof.
• Check air conditioning units, satellite dishes and solar panels, which create sheltered ledges birds love.
• Keep chicken coops well away from the house and treat them for mites regularly if you keep poultry.

What affects the price

The price depends mainly on how many nests there are, how easy the roof void and eaves are to get into, and how many rooms need treating inside. Bird proofing work such as mesh or spikes is quoted separately depending on the length of roofline and the materials needed. We give a free quote after inspection, and photos of the roofline sent via WhatsApp help us prepare.

Frequently asked questions

Areas we cover for bird mite control