Is a seagull warm blooded vertebrate?

Yes, a seagull is a warm blooded vertebrate. Seagulls are birds, and birds are a type of vertebrate that are characterized by having a backbone. Vertebrates are also characterized by having a closed circulatory system, which means that their blood is contained within vessels. Warm blooded animals, also known as endotherms, are able to maintain a constant body temperature regardless of the temperature of their surroundings. This is in contrast to cold blooded animals, also known as ectotherms, which rely on external heat sources to regulate their body temperature. Seagulls are able to maintain their body temperature through a combination of mechanisms, including having a high metabolic rate, which generates heat, and having feathers, which provide insulation.