[Machine] To slaughter what should be slaughtered if it were left, without soaring, such as a duck or chicken, is recommended. It is disliked to slaughter what should be slaughtered if it were left soaring, such as a pigeon or its similar.
أَنْ يَذْبَحَ الْمُحْرِمُ مَا لَوْ تُرِكَ لَمْ يِطِرْ مِثْلَ الْبَطَّةِ وَالدَّجَاجَةِ وَيَكْرَهُ أَنْ يَذْبَحَ مَا لَوْ تُرِكَ طَارَ مِثْلَ الْحَمَامِ وَأَشْبَاهِهِ