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
Only Sisters Can Do That Only Sisters Can Do That Only Sisters Can Do That is the fifteenth and final studio album to date by The Pointer Sisters, released in 1993 on the SBK label. "Only Sisters Can Do That" is the last Pointer Sisters studio album made with founding member June Pointer. Issa Pointer, the daughter of longtime group member Ruth Pointer, performed as a background vocalist on two album tracks; she eventually replaced June Pointer in the group's lineup in 2002. The album was helmed by producer Peter Wolf and led by the single "Don't Walk Away," which featured Michael McDonald as guest