evening vs owl light

evening

noun
  • The time of the day between dusk and night, when it gets dark. 

  • A concluding time period; a point in time near the end of something; the beginning of the end of something. 

  • A party or gathering held in the evening. 

  • The time of the day between the approximate time of midwinter dusk and midnight (compare afternoon); the period after the end of regular office working hours. 

owl light

noun
  • glimmering or imperfect light 

How often have the words evening and owl light occurred in a corpus of books? (source: Google Ngram Viewer )