鶏とり肉にく

鳥とりN5
鶏肉 specifically means chicken meat, while 鳥 is a broader term that can refer to the meat of any bird, though it usually implies chicken.
チキンN1
鶏肉 is the standard Japanese word for chicken meat, while チキン is a loanword typically used in Western-style or casual cooking contexts.
ブロイラー
鶏肉 is the general word for chicken meat, while ブロイラー specifically refers to the fast-growing breed raised for that meat.
鶏にわとりN3
鶏肉 explicitly means 'chicken meat' and is the standard word for the food, while 鶏 alone as a food term is more casual and context-dependent (e.g. on a menu).

Don't confuse with

牛ぎゅう肉にくN5sense 1
鶏肉 refers specifically to chicken meat, while 牛肉 refers to beef, so English learners sometimes mix up which meat each word points to.
豚ぶた肉にくN5sense 1
鶏肉 is chicken meat, whereas 豚肉 is pork; both end in 肉 and are easy to confuse when first learning meat vocabulary.

鶏肉Usage91%
- とりにく
  Standard spelling for chicken meat. The reading けいにく is also possible but rare.
- けいにく
鳥肉Usage5%
- とりにく
  Used for bird meat in general, including poultry. Can also be read ちょうにく, but とりにく is more common.
- ちょうにく
とり肉にくUsage5%
search-only kanji form
Kana-kanji mixed spelling, often used in everyday writing for clarity.
けいにく
ちょうにく

Compound of 鶏 (niwatori, 'chicken') or 鳥 (tori, 'bird') and 肉 (niku, 'meat'). The reading とりにく is the standard kun'yomi combination.