The extraction of duck preen gland oil can be harmful to the animals if not done properly. The preen gland, located near the base of the duck's tail, produces oil that the duck uses to preen its feathers and keep them waterproof. If the extraction process is not done carefully, it can cause discomfort or injury to the duck. However, when done by experienced professionals using ethical and humane methods, the extraction of preen gland oil can be done without causing harm to the animals. **

Contemporary plays can be considered modern in the sense that they reflect current societal issues, values, and cultural norms. They often incorporate modern technology, language, and themes that are relevant to today's audience. However, the term "modern" can also refer to a specific historical period in theater, typically the late 19th and early 20th centuries, so in that sense, contemporary plays may not be considered modern. Overall, the classification of contemporary plays as modern depends on the context and definition being used. **

Modern drama typically refers to the drama that was written and produced between the late 19th and early 20th centuries, while contemporary drama refers to drama that is being written and produced in the present day. Modern drama often reflects the social and political issues of the time in which it was written, while contemporary drama reflects the current issues and concerns of today's society. Additionally, modern drama may be more focused on traditional theatrical forms and structures, while contemporary drama may experiment with new forms and styles. **

Yes, flexibility is important for Modern Dance Contemporary. Many movements in this style require a wide range of motion and flexibility in the joints. Being flexible can help dancers execute movements with more ease and fluidity, allowing them to fully express themselves through their dancing. Regular stretching and conditioning exercises can help improve flexibility and enhance performance in Modern Dance Contemporary. **

Some modern and contemporary artists who paint in the early period style include Eric Fischl, David Hockney, and Neo Rauch. These artists draw inspiration from the techniques and aesthetics of early periods in art history, such as the Renaissance or Baroque periods, but infuse their work with a contemporary twist. Their paintings often feature realistic figures and settings, rich colors, and a strong sense of narrative or emotion, reminiscent of the early period styles they admire. **

Modern dance and contemporary dance are both forms of expressive movement, but they have distinct differences. Modern dance emerged in the early 20th century as a rebellion against the strict rules of classical ballet, focusing on freedom of expression and individual creativity. It often incorporates elements of various dance styles and techniques. On the other hand, contemporary dance is a more fluid and versatile form that draws from a wide range of dance styles, including modern, jazz, ballet, and even street dance. It often emphasizes the use of improvisation and is more focused on exploring current social and political themes. **

Budgerigars are social birds that communicate through vocalizations, so your budgerigar may be whistling constantly as a way to interact with you or express excitement. When you stand up, your budgerigar may feel more energetic and engaged, leading to increased whistling. When you sit back down, your budgerigar may interpret this as a cue to relax and engage in more calming behaviors like cuddling and preening. This behavior may indicate that your budgerigar is responsive to your movements and is adjusting its behavior accordingly. **

Your budgerigar may be whistling continuously when you stand up because he is excited or trying to get your attention. Budgerigars are social birds and may use whistling as a way to communicate with their owners. When you sit back down and he wants to cuddle and preen, it may be a sign that he is seeking comfort and security from you. It's important to provide your budgerigar with mental and physical stimulation to keep him happy and engaged. **