suczki

In a sentence

• Te suczki są bardzo przyjaźnie nastawione.

  These female dogs are very friendly.

  In this sentence, 'suczki' is used to refer to female dogs in a literal, non-colloquial sense.

• Podała mi zdjęcie suczki swojej mamy.

  She handed me a picture of her mother's female dog.

  Here, 'suczki' again refers to a female dog, specifically within the context of someone's pet.

• Mówią, że suczki bywają bardziej opiekuńcze niż psy.

  They say that female dogs tend to be more caring than male dogs.

  In this instance, 'suczki' denotes female dogs generally, used in a comparative-attribute type of sentence.