Cuckoo tries hard but fails to push nestlings—tiny and weak杜鹃鸟没苦硬吃，又瘦又小，还要去推小鸟，却推不动
The cuckoo pushes the big bird with great strength
Shikra Baby's Fall and Mom's Hunt for Food (Full) – Chick's Journey from Egg Crack to First Flight!
Part 9: Cuckoo pecks the mother bird, urging her to find food quickly
The baby bird is hungry, asking for food
Hungry Cuckoo Fails to Push Chick Out – Total Despair!杜鹃鸟又饿肚子了，费尽力气也不能把小鸟推出鸟窝，绝望中
Day6,The diseased cuckoo bird cannot compete with healthy and lively little birds for food
Exhausted, she stood helplessly watching her 3 children cry in the rain from cold and hunger
Day9,The cuckoo bird is sick, with a swollen belly and very weak
Revenge for the baby cuckoo-カッコウの赤ちゃんの苦しみ
茶樹上的鳥窩被電鋸毀掉，幸而鳥媽媽求助被發現，幾隻小鳥被成功救助！【蒙面鸟哥】
The Cuckoo’s Hard Days Come: No Food, Mom Bird Only Feeds Strong Chicks杜鹃鸟的苦日子来了，得不到食物，鸟妈妈只喂强壮的孩子
Peregrine falcon's parenting love『隼・幼鳥・卵』
Scrub Jay Hatchlings 2018, Director's Cut.
Day13, Poor cuckoo, completely defeated
Yellow Ant Attacks Bird's Nest - Baby Bird Is Attacked By Yellow Ants
Sr. T, el águila calva polígama: dos nidos, dos familias, una historia de supervivencia 🦅
anak kedasih jahat!!!..Anak Kedasih Lain Kena Karma
Day11, The cuckoo bird cannot get food and cannot push two large birds
Angry Mother PUSHES OUT all CUCKOO Eggs Before HATCH | bulbul eggs in nest Fullvideo 6