My Silkie Roo crows at any time of day or night. Always at sunup, but throughout the day, evening, even in the middle of the night. Sometimes it's because someone shows up at my house (guess he thinks he's a guard dog), sometimes it's because I go outside for any reason. If I talk on the cordless phone outside he goes nuts and crows constantly. But often times, there appears to be no rhyme or reason, just random crowing. Freaks out company, but I'm pretty used to it.