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 religious track from "The Emancipation of Mimi", with its lyrics featuring a veritable prayer to God: "Fly like a bird, take to the sky, I need you now Lord, carry me high!". At the time of its release, "Fly Like a Bird" received acclaim from music critics. While many praised Carey's strong vocal performance throughout its climax, many pinpointed on its lyrical content and compared it to Carey's debut song, "Vision of Love". Released as the final single from its parent album, the song was only sent to adult contemporary and gospel radio stations, during the same time "Say Somethin'"