Siskins in Northern Ireland
When the Siskin (Spinus spinus) is present in Northern Ireland, when it nests, and which native Northern Ireland plants supply the food it depends on.
- Status in Northern Ireland
- Resident all year
- Nesting season
- April–June
- Size
- 12 cm, 13 g
- Nest box
- Does not use enclosed boxes
- Delivery
- Perch Supply ships to the UK
When to expect siskins in Northern Ireland
The Siskin lives in Northern Ireland all year round. Rarely severe; winter thrushes and finches from Scandinavia and Iceland arrive from October.
Mild, wet and windy maritime climate with few temperature extremes.
Nesting in Northern Ireland
In Northern Ireland the Siskin usually nests April–June. Nest site: cup high in conifers. Clutches are 3–5 eggs, incubated for 12 days; chicks fledge after 13–15 days, and pairs raise 2 per year.
- The Siskin does not use enclosed nest boxes — dense native shrubs and climbers give it nest sites.
- Avoid cutting hedges during the nesting season (roughly March to August) — in the UK, disturbing an active nest is an offence under the Wildlife and Countryside Act 1981.
Native Northern Ireland plants for siskins
Of the native plants we track for Northern Ireland, these 6 provide food the Siskin uses:
Goldfinches extract the seeds from standing heads in autumn and winter.
Seed heads for Goldfinches and a nectar source for insects.
Catkin seed for Siskins and Redpolls; many caterpillars for tit broods.
Cones hold seed that Siskins and Goldfinches feed on all winter.
Pine seed for Coal Tits, Crested Tits and Crossbills.
Berry-like cones taken by thrushes in winter.
Feeding in the garden
Alder, birch and conifer seed.
- Best foods: Nyjer, Sunflower hearts.
- Feeders: Nyjer feeder, Tube feeder.
- Often arrives in late winter when natural seed runs low.
Frequently asked questions
Frequently asked
Are siskins in Northern Ireland all year?
Yes — the Siskin is resident in Northern Ireland all year.
When do siskins nest in Northern Ireland?
Typically April–June. Clutches are 3–5 eggs, incubated for 12 days, with 2 per year.
Which native plants help siskins in Northern Ireland?
Teasel, Common knapweed, Silver birch, Alder, Scots pine, Juniper are native to Northern Ireland and provide food or cover the Siskin uses.
Siskins in other countries
Other garden birds in Northern Ireland
Sources
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.