1,    a,    adults,    animals,    aves,    bicolor,    bicolour,    birds,    bough,    boughs,    branches,    budgerigars,    budgies,    format,    gray-yellow,    grey-and-yellow,    grey-yellow,    indoors,    limbs,    lovebirds,    parakeets,    psittacines,    solo,    twigs,    two-colored,    two-coloured,    yellow-and-grey,    yellow-gray,    yellow-grey,