Mangrove robin

The mangrove robin (Peneothello pulverulenta) is a passerine bird in the family Petroicidae. It is found in the Aru Islands, New Guinea, and northern Australia. The bird's common name refers to its natural habitat. They live in mangrove forests and seldom fly outside these biomes.

The mangrove robin has an average weight of 21.3 grams (0.75 oz) for males and 17.3 grams (0.61 oz) for females. Their wingspan differs between subspecies – the leucura subspecies have spans of 86 millimetres (3.4 in) to 90 millimetres (3.5 in) for males and 77 millimetres (3.0 in) to 84 millimetres (3.3 in) for females, while the alligator subspecies have spans of 82 millimetres (3.2 in) to 87 millimetres (3.4 in) for males and 76 millimetres (3.0 in) to 80 millimetres (3.1 in) for females. For cinereiceps, male birds have wingspans of 80 millimetres (3.1 in) to 84 millimetres (3.3 in) long; on the other hand, female wingspans are 76 millimetres (3.0 in) to 78 millimetres (3.1 in) long. They feature a "dull pale bar" at the bottom of their remiges, although this is not very noticeable. In order to facilitate their navigation through thick mangrove forests, mangrove robins have developed wings and tails that are rounded.