Black robin vs Tomtit
The black robin is heavier: 23.5 g against 11.8 g for the tomtit, about 2.0 times the weight.

Photo: frances schmechel · CC BY-SA 2.0 · Wikimedia Commons

Photo: Mark Jobling · Public domain · Wikimedia Commons
What is the difference between a black robin and a tomtit?
Each point below is worked out from a pair of recorded values.
- The black robin is heavier: 23.5 g against 11.8 g for the tomtit, about 2.0 times the weight.
- Both belong to the genus Petroica, so they are close relatives.
- The black robin is listed as Vulnerable on the IUCN Red List; the tomtit is Least Concern.
Side by side
| Black robin | Tomtit | |
|---|---|---|
| Scientific name | Petroica traversi | Petroica macrocephala |
| Family | Petroicidae | Petroicidae |
| Order | Passeriformes | Passeriformes |
| Weight | 23.5 g | 11.5 g – 12 g |
| Length | Not recorded | Not recorded |
| Lifespan | Not recorded | Not recorded |
| Main food | Not recorded | Not recorded |
| Habitat | forest | forest |
| Conservation status | Vulnerable | Least Concern |
| Countries recorded | Not recorded | Not recorded |
A scale drawing needs a recorded length for both animals; only weights are on record for this pair.
Full record: Black robinFull record: TomtitCompare other animals