Mangrove Gerygones often appear comfortable around humans. Not easily startled.
Similar in size and shape to Dusky Gerygone, but slightly shorter bill. Top and sides of head and neck grey/brown, changing to grey/white on on chin and throat. Narrow white eye-ring. Iris red/red brown, legs and feet black, black bill. Often with redish brown tinge on rump. Off white on upperbody, with pale grey on throat, chin and sides.
Dusky Gerygone, Large-billed Gerygone
Purely coastal along Northern and Eastern coast, living in the mangroves. From Central Coast of NSW to the Kimberley WA. Sometime found in adjacent paperbark forests.
Mangroves as well as associated paperbark forests and thickets nearby mangroves.
No known seasonal movements, sedentary or resident.
Usually forage in mangroves in trees, sometimes on ground. Can forage either singly, in pairs, small flocks sometimes with White-eyes. Exclusively insects. Occasionally hovers over flowers to catch insects.
Eastern Australia mostly spring-summer, in North mostly Autumn-spring (dry season). Usually nests in mangroves, nest is oval, domes with spout like entrance. Constructio materials include grass, paperbark, roots, mos, dry seaweed, and decorated with cocoons, spider egg-sacs. Usually 2-3 eggs. Incubated by female, 12-14 days.. Both parents feed nestlings.
Removal of mangroves, leaves no habitat for Mangrove Gerygones.
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