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
The Bird That Drinks Blood Bird That Drinks Poison," if "The Bird That Drinks Water" isn't dramatic enough for a fantasy title. When asked about this in interviews, Lee denies any plans for another sequel on his part, saying "I don't know anything for now. I have no plans." In a 2008 interview, when asked "we understand that writing the "Bird" series has not been finished. Please let us know your future writing plans," Lee answered laughing: "there are lots of rumors[...] About this 'Bird' series too. I never declared that I would write a series, but before I knew it, the new quartet or