This is a specific conversation about Bird supplies — getting the setup right — ask about yours and get one honest answer for your exact situation.
inparticular.ai
Working with kakapo is extraordinarily specialist territory — you're dealing with a bird whose natural habitat is the cool, humid forest floors of New Zealand, and replicating that indoors means getting two things right above almost everything else: substrate that holds moisture without going anaerobic, and humidity that sits consistently in the 70–80% range without wild swings. What does the enclosure footprint look like, and are you managing temperature independently or trying to handle everything through the humidity system?
It's a large indoor aviary, roughly 4 metres by 3 metres, temperature is managed separately with a dedicated HVAC unit. I'm mainly trying to solve the substrate question and get a reliable humidity controller that won't give false readings. The bird is part of a breeding programme so consistency is critical.
inparticular.ai
That's a sensible split — keeping temperature and humidity systems independent gives you much better control and easier fault-finding. For substrate, the key challenge with kakapo is that they forage heavily on the ground, so you need something that mimics compressed leaf litter and forest duff: it needs to hold humidity, drain excess moisture, and stay structurally stable underfoot. Have you been using anything currently, or are you starting from scratch on the substrate layer?
Starting from scratch. I've seen people use coconut coir but I'm not sure if it holds up well over months without compacting badly or developing mould issues.
inparticular.ai
Coir alone does compact and can go sour if moisture pools — the fix is layering it. A drainage base of coarse orchid bark or lava rock at 5–8cm, then a mix of Zoo Med Forest Floor cypress mulch blended with coir at roughly 60/40 on top. The cypress has natural antifungal properties that significantly reduce mould risk, and the blend stays open-textured for foraging behaviour far longer than coir alone. For the humidity controller, I'd go with the Inkbird IHC-200 — it's a dual-outlet unit with a digital probe, so you can run a humidifier on one outlet and a small exhaust fan on the other, and it switches each independently based on real readings. It's accurate to within about 2–3% RH which is as good as anything in this price bracket, and it has high and low alarms so you'll catch a system failure before it causes harm. The Zoo Med Forest Floor cypress mulch is readily available on Amazon UK in bulk bags, and the Inkbird IHC-200 is also listed there.
That layering approach makes a lot of sense. How deep should the total substrate be, and how often would you expect to need a full replacement versus just topping up?
inparticular.ai
For a bird that forages as actively as a kakapo, aim for a total depth of around 15–20cm — that gives genuine sensory enrichment and means the lower layers act as a buffer reservoir for humidity. In practice, with a well-managed drainage layer underneath, you shouldn't need a full replacement more than twice a year. You'll be spot-cleaning the top 3–4cm weekly where waste concentrates, and doing a partial refresh of the upper layer every 6–8 weeks. The drainage base itself can stay in place indefinitely unless you see persistent pooling. One thing worth monitoring: if you're hitting 70–80% RH consistently, check the substrate surface temperature — cold spots against a warm humid substrate are where mould takes hold fastest.
Really helpful, thank you. I'll go with the cypress and coir blend and order the Inkbird controller.
inparticular.ai
Good setup — the Inkbird will give you the audit trail you need for a conservation programme too, since you can log conditions over time if you pair it with a separate data logger. If you find the humidity response is sluggish in a space that size, a second humidifier on a basic timer as a baseline unit alongside the Inkbird-controlled one works well. Best of luck with the breeding season.