CREATE TABLE table_20042805_2 (hadeda_ibis VARCHAR2, knobbilled_duck VARCHAR2)

What is the Hadeda Ibis when the Knobbilled Duck is Pied Crow?
SELECT hadeda_ibis FROM table_20042805_2 WHERE knobbilled_duck = "Pied Crow"
SELECT "hadeda_ibis" FROM "table_20042805_2" WHERE "Pied Crow" = "knobbilled_duck"