Mute SwanCygnus olorइन्हें कहाँ और कब देखें

The Mute Swan is a very large white waterbird with an orange bill, black facial skin and a prominent black knob at the bill base. BTO gives a reference mass of 9.4 kilograms. The name does not mean the bird is silent: hissing and soft calls are part of its repertoire, while its wings produce a distinctive sound in flight. Four separate river settings are registered, and they must remain separate: the Romanian Danube Delta around Mahmudia, Strasbourg’s Rohrschollen waters, the lower Saône promenade and Grande Noë lake in the Seine floodplain. None establishes a universal swan-viewing itinerary. BTO reference: https://www.bto.org/learn/about-birds/birdfacts/mute-swan. Source: https://www.rspb.org.uk/birds-and-wildlife/mute-swan

आकार

Body length not verified.

वजन

9.4 kg (20.7 lb) reference value; BTO BirdFacts.

जीवनकाल

Species-specific lifespan not verified.

स्थिति

UK Green in BTO; a current global assessment was not verified.

Breeding pairs can be strongly territorial, while nonbreeding birds may gather in groups. The RSPB describes both birds that remain on territories and birds that move substantial distances. These alternatives explain why the presence of one pair cannot establish the movements of an entire local population. Parents can carry small cygnets on their backs. A raised-wing posture or hissing should be treated as a warning to increase distance, not a sign that a bird wants food. Leave a clear route between adults, young and open water.

• The orange bill has a black base.
• The bill carries a black knob.
• Young birds are often grey-brown.
• It is not actually silent.
• Small cygnets can ride on a parent’s back.
• Pairs can defend territories.
• It reaches underwater vegetation with its long neck.

LPO Alsace explicitly lists Mute Swan among winter waterbirds around Rohrschollen. That local seasonal statement is retained qualitatively because it does not supply numerical month boundaries. The registry describes year-round opportunities at some other sites, but a retrieved species-specific recurring calendar was not verified for those exact reaches. All four months arrays remain empty. The Romanian association concerns a separate delta itinerary, not the usual Passau–Budapest route. Check local access and present conditions rather than using broad European residency to fill a monthly matrix.

Lakes, rivers, canals and other suitable fresh waters provide the broad habitat context. Within the registered locations, sheltered lakes and channels are especially relevant in the Danube Delta, while Rohrschollen includes the Vieux Rhin and Grand Canal. Grande Noë is a floodplain gravel-pit lake, not the Seine navigation channel. The Saône entry concerns open water and bank edges along the Lyon-area promenade. These distinctions matter because a species can occur in the river landscape without being visible from the ship’s route. No nest sites or local population densities were verified.

The RSPB describes Mute Swans searching for aquatic vegetation, using their long necks to reach beneath the surface. This makes shallow feeding areas useful to watch, but a long neck does not mean every depth is accessible. Local plant species and dietary proportions were not verified for any of the four registered reaches. A bird holding its head underwater may be feeding without bringing an identifiable item above the surface. Do not offer bread or approach a family to encourage feeding. Observe natural grazing and underwater searching from a respectful distance.

सामान्य नाम

Mute Swan

Scientific name

Cygnus olor

पशु समूह

Birds

आकार

Body length not verified.

वजन

9.4 kg (20.7 lb) reference value; BTO BirdFacts.

जीवनकाल

Species-specific lifespan not verified.

स्थिति

UK Green in BTO; a current global assessment was not verified.

पहचान

Adults are white, with an orange bill, black bill base and a black knob that is generally larger in males. The familiar S-shaped resting neck supports identification, but posture alone is not diagnostic. Flying birds extend the neck and use slow, regular wingbeats. Young birds are grey-brown and have duller bills, so they should not be judged against the clean white adult pattern. Whooper and Bewick’s Swans have different yellow-and-black bill patterns. Obtain a clear bill view when distinguishing swans rather than relying only on size or the presence of white plumage.