Nonhuman female feathered biped whose productivity status is not part of speaker-knowledge : rikrü
207 kholo ‘crow’   kholo rikrü ‘female crow status as to productivity     is not part of speaker-knowledge’       208 pilo ‘kind of wild bird as big as a dove’   pilo rikrü ‘a female wild bird whose status as to pro-     ductivity is not part of speaker-knowledge’
Generic gender words for feathered bipeds :
rikrü ‘feminine’ ridzü ‘masculine’           209   raho ‘bird’                 raho rikrü ‘female bird’                 raho ridzü ‘male bird’
As a last point, it may be noted that otu ‘domestic four-legged bovine’ which is elsewhere in the language treated as human is not treated so in the gender system :
cf. 210 tu-krü1 -püi-i2 ‘the2 cow1
where -püi is a human gender suffix and
211   ni1 tu-krü2 zhu3 ahie-ti-we4               ‘what[lit.who]4 [is]your1   cow’s2 name3
where ahie ‘who’ which is used to elicit human names is used. As noted earlier, only ova ‘monkey’ and ovo ‘crab’ are considered human as far as gender markers go.
212  ova pfoo ‘male monkey’   ova nieo ‘female monkey’       213 ovo pfoo/khelo ‘male crab’   ovo nieüo/kheni ‘female crab’
Gender is not marked in the verb. The question of gender being marked in the adjective does not arise as gender-number markers only nominalize it.
3.3.3.	Number
In Mao, as in Angami, number is not an obligatory overt grammatical category. It is indeed obligatorily unmarked certain contexts - which is why number is not a necessary structural property of the Mao noun. Number is left morphologically unmarked in the indefinite when the linguistic context comprises [a] the modification of the noun by [i] a numeral [ii] a nonsingular demonstrative pronoun [iii] a quantifier [iv] a noun pluralized by khru or a plural pronoun marked by khru [b] the plural deictic pronominal subject about which the noun [phrase] is a predication and [c] postpositions etc. which are transparent as to number.
[a] [i] 212 larübvü1 curo2 ‘ten2 books1       lit. ten book           213 ocü1 padüi2 ‘five2 houses1       lit. five house           214. nieo1 coku2 nine2 females1       lit. nine female           215 osi1 kaxi2 two2 dogs1       lit. two dog           216 ihõ1 kosü2 ‘three2 snakes1       lit. three snake           217 mopfo1 maküi2 twenty 2 years1       lit. twenty year           218 ocü1 cüro2 ten2 stones1       lit. ten stone           219 larübvü1 cani2 seven2 books1       lit. seven book           220 oba1 caca2 eight2 hands1       lit. eight hand
The Plural markers, -khru and -ta, however, can occur with individuated NPs modified or headed by numerals.