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
We Can Fly interview with "Rolling Stone", Anderson stated that on hearing "We Can Fly" he felt it sounded "a bit dated" and that Trevor Horn's production "wasn't as good as I expected". He did, however, praise David's vocal performance. We Can Fly "We Can Fly" is a single by the progressive rock band Yes released in 2011, and consisting of shortened versions of two sections of the hexalogy "Fly from Here" from their album of the same name: "Fly from Here, Part I: We Can Fly" and "Fly from Here, Part V: We Can Fly (Reprise)". It is the first single by