Weight: Arctic wolf or Arctic tern?

Arctic wolf has the higher weight.

§ Comparison

Arctic wolf or Arctic tern.

Weight: 32–70 kgdimensions.com; 0.086–0.127 kgen.wikipedia.org
Length: 0.97–1.73 mdimensions.com; 0.33–0.36 men.wikipedia.org
Lifespan: 13.7 yearsgenomics.senescence.info; 15–34 yearsnwf.org
Sexual maturity: 2–3 yearses.wikipedia.org; 3–4 yearsbinocularbase.com
Young per litter: 2–3es.wikipedia.org; 1–3en.wikipedia.org
Clutches per year: 1wolf.org; 1en.wikipedia.org
Population: 200,000–250,000 individualsscope undetermineden.wikipedia.org; 3,000,000 individualsaudubon.org
Habitat: Lives on the grounden.wikipedia.org; Lives in the seaen.wikipedia.org
Activity: Comes out at nighten.wikipedia.org; Moves by dayen.wikipedia.org
Diet: Eats meaten.wikipedia.org; Eats fishpmc.ncbi.nlm.nih.gov
Social life: Moves in a herden.wikipedia.org; Lives in a colonyen.wikipedia.org
Mating: Forms a lasting pairanimals.sandiegozoo.org; Forms a lasting pairen.wikipedia.org
Body covering: Has fures.wikipedia.org; Has feathersen.wikipedia.org
Pattern: Is a single coloures.wikipedia.org; Is a single colouren.wikipedia.org
Shelter: Shelters in caveses.wikipedia.org; Builds a nesten.wikipedia.org
Territoriality: Defends its territory all yearwolf.org; Only defends the nesten.wikipedia.org
Body temperature: Makes its own heatcoolantarctica.com; Makes its own heatcoolantarctica.com
At birth: Is born helplesswolf.org; Is born with open eyes but stays putbinocularbase.com