Red-billed quelea millions of them in murmuration above Ndutu marsh, Tanzania

flock of birds murmuration swarm redbilled quelea flock birds flying migration murmering ndutu ploceidae migratory birding avian abundance tanzania passerine wildlife nature wildlife observation fauna bird wild redbilled dioch tree animal bird watching landscape group fly marsch natural wild animal africa red subsaharan flight safari lake horizontal golden hour small dioch fast weaver perched family bill