Species keeper protocol

Egernia cunninghami

Cunningham's skink
A social, rock-dwelling skink requiring a broad basking surface, secure crevices, a plant-dominant diet and carefully managed seasonal cooling.

Day ambient19-23 CKeep a cooler shaded retreat available at all times
Night11-14 CDeep cooling applies only to prepared healthy adults
Basking surface32-35 CUse a broad rock surface with immediate escape routes
UV at baskingUVI 2-3Provide crevices and shade below UVI 1

Keeper timer setting

T5 UVB: one hour later on, one hour earlier off

During active care — ON: 1 hour after daylight starts.
OFF: 1 hour before daylight ends.

During hibernation / full brumation: T5 UVB OFF (0 hours). In transition months, keep UVB off while dormant and use the active timer only once the animal is warmed and active.

October: daylight 11 h; T5 UVB 9 h.

The active T5 duration is the photoperiod minus two hours. Example: daylight 08:00–20:00 means UVB 09:00–19:00. Follow the monthly UVI strength measured beneath the tube and provide access to shade. This timing rule does not introduce hibernation for species whose schedule has only a mild or active winter rest. If an older combined heat / UV column is present, the new T5 UVB duration column governs UVB timing; existing heat settings are preserved.

UVI beneath the optional T5 tube

Working exposure target

October target at normal back height

UVI 2-3directly under the tube when it is on

The retained range remains a provisional captive working target. No new species-specific result was found that clearly requires a numerical change. Retaining it is not certification of an experimentally established optimum.

Your measuring point

Measure at the animal's normal back height directly beneath the brightest accessible part of the T5 strip, positioned toward the middle/back. The animal can enter and leave this area freely.

Keep a lower-UVI gradient and fully covered refuges near UVI 0. This is the optional exposure area, not the average across the cage.

Use a UV Index meter, such as a Solarmeter 6.5/6.5R. Warm the tube for about 30 minutes; keep reflector, guards and mesh in place. Raise or lower the fixture within its manufacturer's minimum-distance guidance, then recheck the reading and every higher accessible surface.

Evidence level: Provisional retention. These are working recommendations, often inferred; exact species optima and seasonal UV dose usually have not been measured. Log lamp-on time and animal behaviour as well as UVI.

Baines et al. (2016), UV-Tool · Muryn, Baines and Dishman (2026), Reptile Lighting Guide V10

October management

Selected automatically using the Netherlands date

Autumn transition

Rock outcrops and wooded slopes - southeastern Australia

19-23 CDay ambient
11-14 CNight
32-35 CBasking
2-3T5 UVI*
11 hPhotoperiod
9 hT5 UVB duration
1 light local spray/week; water alwaysSpray / water
2-3 feeds; taperFeeding

Spray / water: weekly rates are provisional captive working targets. Provide clean drinking water year-round; keep dry refuges and let sprayed surfaces dry. During dormancy, use moisture checks rather than scheduled cage spraying.

Annual schedule

Scroll sideways on smaller screens

MonthDay ambientNightBaskingT5 UVI*PhotoperiodT5 UVB durationSpray / waterFeedingSeasonal management
January10-13 C7-10 COffOff9 hOff (0 h)Check refuge moisture weekly; no routine cage spray; water alwaysNoneCore cooling - healthy adults
February12-16 C8-11 COff; 30-32 C lateOff; 1-2 late9 h 30 mOff during rest; 7 h 30 m when activeWhile resting: moisture checks only; once active: 1 light spray/week; water alwaysNone; restart lateStaged emergence late month
March18-22 C10-13 C32-35 C2-310 h 30 m8 h 30 m1-2 light local sprays/week; water always2-3 feeds weeklyEmergence / conditioning
April22-25 C12-15 C34-37 C3-411 h 30 m9 h 30 m1-2 light local sprays/week; water always3-4 feeds weeklyCourtship / mating
May24-27 C14-17 C36-38 C3-512 h 30 m10 h 30 m2 light local sprays/week; water always4-5 feeds weeklyPeak mating
June25-28 C16-18 C36-39 C4-513 h 30 m11 h 30 m2 light local sprays/week; water always4-5 feeds weeklyGestation
July26-29 C17-19 C37-40 C4-514 h12 h2 light local sprays/week; water always4-5 feeds weeklyBirths may begin
August25-28 C16-18 C37-39 C4-513 h 30 m11 h 30 m2 light local sprays/week; water always4-5 feeds weeklyPeak births / recovery
September23-26 C14-17 C35-38 C3-412 h 30 m10 h 30 m1-2 light local sprays/week; water always4 feeds weeklyLate births / recovery
October19-23 C11-14 C32-35 C2-311 h9 h1 light local spray/week; water always2-3 feeds; taperAutumn transition
November14-18 C8-11 C28-32 C; then off1-2; then off10 h8 h when active; then Off1 light spray/week while active; moisture checks only once dormant; water alwaysTaper; stop after gut clearsPre-cooling
December10-13 C7-10 COffOff9 hOff (0 h)Check refuge moisture weekly; no routine cage spray; water alwaysNoneCore cooling - monitor weekly
Additional original settings

Preserved humidity and lamp-duration values. Use the main table’s T5 UVB duration for UVB timing.

January
Heat / UV: 0 h
February
Heat / UV: 0 to 3 h
March
Heat / UV: 6 h
April
Heat / UV: 8 h
May
Heat / UV: 9 h
June
Heat / UV: 10 h
July
Heat / UV: 10 h
August
Heat / UV: 9 h
September
Heat / UV: 8 h
October
Heat / UV: 6 h
November
Heat / UV: 3 h to 0
December
Heat / UV: 0 h

Keeper notes

Use measured gradients and animal behaviour, not single thermostat readings

T5 UVI measurement

Measure UVI at normal back height directly beneath the brightest accessible part of the optional T5 strip. Place the strip toward the middle/back with free access to and away from it; preserve a gradient into fully covered refuges near UVI 0. These numbers describe the exposure area, not the whole enclosure or a daily average.

UVI review

The retained range remains a provisional captive working target. No new species-specific result was found that clearly requires a numerical change. Retaining it is not certification of an experimentally established optimum.

Enclosure and social management

Use approximately 150 x 75 x 75 cm or larger for one adult or an established compatible pair, with 180 x 90 x 90 cm preferred. Wild family living does not guarantee captive compatibility; separate for persistent chasing, crevice exclusion, bite injuries, suppressed basking or weight loss.

Basking and UVB

During full activity provide a broad 35-40 C rock surface, warm air in the mid-20s and shaded retreats below the low-20s when seasonally appropriate. Target measured UVI 3-5 at the main basking position and below UVI 1 inside crevices.

Diet

Adults are strongly plant-dominant. Base the diet on varied leafy greens, safe weeds and flowers; use appropriately sized gut-loaded invertebrates more often for juveniles and only as a minor seasonal component for adults.

Winter cooling

Reduce food, heat and day length gradually over 4-6 weeks. For animals of unknown or mixed provenance, use a cautious stable core range around 8-12 C rather than deliberately targeting near-freezing nights. Cool only healthy adults with good reserves.

Breeding and neonates

On this Netherlands-shifted calendar, mating is expected mainly in April-May and the single annual litter mainly in July-August, sometimes into September. Provide quiet secure crevices for females and neonatal-width retreats after birth.

Keeper warning

Secure all heavy rockwork directly from the enclosure floor. Reverse cooling and review husbandry for sustained activity, dehydration, respiratory noise, marked weight loss or other illness; compromised animals require reptile-veterinary assessment.

Drinking water

Provide a stable shallow bowl of clean water in the cool area throughout the year; wash and refill daily and whenever soiled. Allow voluntary use while ensuring easy entry and exit. Do not force a cooled skink to soak. Water remains available during brumation.

How to spray and manage refuge moisture

A light local spray wets a limited cool-side rock or crevice entrance, not the entire cage. Keep warm basking surfaces and at least one refuge dry, with strong ventilation; wetted surfaces must dry before another application. Offer a sheltered slightly damp option when needed for shedding, without saturated bedding or standing water. Use fewer applications if drying is slow; check drinking, shedding and body condition.

Winter moisture checks

During the existing November-February cooling sequence, reduce disturbance and inspect accessible refuge conditions weekly. Add only enough local moisture to prevent an overly dry retreat; do not dampen the occupied sleeping crevice indiscriminately or leave a cold, wet enclosure. Resume the active spray target only after animals are warmed and active. Keep the existing UVB OFF settings during dormancy.

Seasonal evidence and limits

Cunningham’s skinks occur across southeastern Australia, including comparatively dry inland and wetter upland localities. Canberra and Katoomba weather records show rainfall through the year, so a Pilbara-style prolonged dry season is inappropriate as a general template. The listed weekly spray frequencies are provisional captive starting targets aligned with the existing Netherlands activity calendar, not measured species-specific biological requirements or a conversion of rainfall to mandatory sprays. Provenance is unknown: adapt to actual drying, refuge moisture and animal response rather than attempting to reproduce a station’s outdoor humidity.

Water and seasonal moisture evidence

Representative inland and upland climate proxies, not measurements inside skink refuges or the full range across all populations. Canberra uses the long-term Airport Comparison series (1939–2010). Katoomba uses the Bureau’s long-term station record. Australian months are shifted six months for the existing Netherlands captive calendar. During captive dormancy, the winter moisture instructions above take priority over regional rain statistics.

Monthly rainfall evidence
January in captivity ↔ July in Australia
Mean rainfall: Canberra 41.4 mm; Katoomba 84.6 mm.
February in captivity ↔ August in Australia
Mean rainfall: Canberra 46.2 mm; Katoomba 79.1 mm.
March in captivity ↔ September in Australia
Mean rainfall: Canberra 52 mm; Katoomba 70.5 mm.
April in captivity ↔ October in Australia
Mean rainfall: Canberra 62.4 mm; Katoomba 91.5 mm.
May in captivity ↔ November in Australia
Mean rainfall: Canberra 64.4 mm; Katoomba 110.3 mm.
June in captivity ↔ December in Australia
Mean rainfall: Canberra 53.2 mm; Katoomba 120.4 mm.
July in captivity ↔ January in Australia
Mean rainfall: Canberra 58.5 mm; Katoomba 164.9 mm.
August in captivity ↔ February in Australia
Mean rainfall: Canberra 56.4 mm; Katoomba 178 mm.
September in captivity ↔ March in Australia
Mean rainfall: Canberra 50.7 mm; Katoomba 174.4 mm.
October in captivity ↔ April in Australia
Mean rainfall: Canberra 46 mm; Katoomba 121.2 mm.
November in captivity ↔ May in Australia
Mean rainfall: Canberra 44.4 mm; Katoomba 100.5 mm.
December in captivity ↔ June in Australia
Mean rainfall: Canberra 40.5 mm; Katoomba 115.6 mm.

Ofori et al. (2017): Cunningham’s skink distribution and habitat
Tie and Scott Eipper: first-hand Cunningham’s skink care, clean water bowl and ventilation
Bureau of Meteorology: Canberra monthly climate
Bureau of Meteorology: Katoomba monthly climate