Bird migration evidence. Seabirds fly low over water but gain altitude when crossing land, and the reverse pattern is seen in landbirds. However most bird migration is in the range of . Bird strike aviation records from the United States show most collisions occur below and almost none above . Bird migration is not limited to birds that can fly. Most species of penguin (Spheniscidae) migrate by swimming. These routes can cover over . Dusky grouse "Dendragapus obscurus" perform altitudinal migration mostly by walking. Emus "Dromaius novaehollandiae" in Australia have been observed to undertake long-distance movements on foot during droughts. While participating
Fly Like a Bird trills – and her instrument seems to be intact; witness the display of bravado on 'Fly Like a Bird'." When describing the song, Dina Passaro from "Newsday" wrote "This songstress is back and better than ever!" and claimed Carey "sounds awesome and tears it apart". Tom Ferguson from "Billboard" called the track a "classic", and wrote "the re-crowned diva delivers a consummate vocal." Similarly, in a separate review for the song, Ferguson went into detail regarding Carey's performance in "Fly Like a Bird": "The Emancipation of Mimi" spawns yet another career-redefining hit in the sweet, soulful "Fly Like a Bird",