Mallard duck at Tegeler Fließ Nature Reserve, Berlin
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Questions about the subject, usage, technology & more
What is the blue patch on a female mallard's wing called?
The iridescent blue patch on a mallard's wing is called the speculum. It sits on the secondary flight feathers and is bordered by white stripes. Both male and female mallards have it, though it is often more vivid in males. The speculum plays a role in species recognition and courtship signaling among ducks.
How can this photo be used?
With a commercial license on Kataloop, this stock photo can be used across a wide range of projects. The high resolution supports large-format print applications such as nature calendars, ornithology textbooks, or environmental education materials. Example uses also include nature magazines, conservation organization campaigns, or editorial content about Berlin's protected wetland areas and urban biodiversity.
What mood does this photo convey?
The reflection of the mallard in the nearly still water, combined with the dense reed background, creates a calm and focused atmosphere. The duck's downward gaze, the muted palette of browns and greens, and the diffused light convey a sense of quiet concentration, signaling closeness to nature and undisturbed wildlife.
What equipment was used to capture this photo?
The exceptional resolution of 8085 x 5390 pixels in this photo is made possible by the Sony Alpha 1 (ILCE-1) and its 50-megapixel sensor. Paired with the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary, even fine feather details of the mallard duck could be captured sharply from a respectful distance without disturbing the bird. The lens's built-in optical stabilization was key to achieving sharpness at extended focal lengths.
What visual style or trend does this photo represent?
Images of undisturbed wildlife in urban nature reserves resonate with a timely societal conversation: urban ecology and in-city biodiversity are central topics in environmental policy and urban planning. The image also speaks to the growing trend of slow living and mindful nature observation as a counterbalance to digital overstimulation.
Tucked into Berlin's northwestern edge, the Tegeler Fließ is a natural waterway corridor running through one of the city's most biodiverse protected areas. Connecting bogs, meadows, and dense reed beds into a coherent wetland habitat, it supports a rich variety of waterfowl including mallard ducks like the one pictured here. The still, reflective water and thick reeds make it a sought-after location for wildlife and nature photographers.
Ginger cat in natural habitat at Tegeler Fließ, Berlin
Mandarin duck swimming in Tegeler Fließ, Berlin
Red pedestrian traffic light at dusk in Tegeler Fließ
Berlin is widely known for its cultural scene and nightlife, but the city also harbors a surprising number of green retreats within its urban fabric. Districts like Reinickendorf in the north offer remarkably wild natural experiences, from lakeshores to forested parks teeming with wildlife. For nature and wildlife photographers, Berlin is an underrated base with genuine biodiversity just minutes from the city center.

