Green droppings in chickens can mean something simple, or they can be a warning that the bird is sick.
The colour alone cannot tell you the disease.
A chicken that eats plenty of green leaves may pass green droppings and still be healthy. A chicken that stops eating can also pass dark green droppings because bile is still entering the gut even when little feed is moving through it.
Do not treat the colour. Check the bird.
Start with one question: is the bird still eating?
This is one of the most useful first checks.
If a chicken has green droppings but is active, eating and drinking normally, look at what it has eaten recently.
If the bird is dull, weak and refusing feed, the green droppings may be part of a bigger problem.
Green feed can make droppings green
Grass, vegetables and other green plant material can change dropping colour.
This is usually less worrying when:
- the birds are active;
- feed intake is normal;
- water intake is normal;
- there is no sudden mortality; and
- the droppings return to normal after the diet changes.
Not eating can also produce green droppings
A sick bird often stops eating before the farmer notices other signs.
When little feed is moving through the gut, bile can make the droppings look dark green.
So green droppings may sometimes tell you that the bird is not eating, rather than telling you one particular disease.
Check the whole flock
Do not focus on one dropping.
Ask:
- How many birds are affected?
- Are birds still eating?
- Are they drinking?
- Is mortality rising?
- Are birds coughing or sneezing?
- Are there twisted necks or weak legs?
- Has egg production dropped?
- Has feed recently changed?
- Has the weather become very hot?
When green droppings may point to serious disease
Green diarrhoea can occur with serious poultry diseases, but it does not confirm any of them.
For example, Newcastle disease can cause diarrhoea together with breathing problems, nervous signs and high mortality.
The World Organisation for Animal Health warns that Newcastle disease can look similar to avian influenza and that laboratory testing may be needed.
Avian influenza can also involve green droppings
Nigerian poultry cases have shown that greenish faecal pasting can occur with avian influenza infection.
A 2024 Nigerian investigation of H9N2 influenza in commercial poultry reported greenish faecal pasting together with other serious signs.
See the Nigeria avian influenza study.
This does not mean every green dropping is bird flu.
It means green droppings should be taken more seriously when they come with:
- high mortality;
- swollen head or face;
- breathing problems;
- blue comb or wattles;
- sudden severe weakness; or
- a fast spreading flock problem.
Fowl cholera can also cause green diarrhoea
Fowl cholera may cause sudden deaths, weakness, fever and greenish diarrhoea in some birds.
Again, dropping colour alone is not enough for diagnosis.
If several birds die suddenly, get proper help instead of trying different home mixtures.
Heat can change droppings
During hot weather, birds drink more water and may eat less feed.
This can make droppings wetter and sometimes change their colour.
If hot weather is the problem, you may also see:
- panting;
- wings held away from the body;
- birds crowding near water;
- lower feed intake; and
- reduced egg production.
Use our Heat Stress in Poultry Guide if the flock is panting.
Check the feed
Green droppings can also appear when birds are eating poorly because the feed is bad.
Check:
- mould;
- bad smell;
- wet feed;
- old feed;
- insect damage; and
- a sudden change in feed brand or formula.
If birds stop eating after a new batch arrives, do not ignore the timing.
Check the water
Dirty water can cause gut problems.
Blocked or empty drinkers can also make sick birds worse.
Make sure:
- water is available;
- drinkers are clean;
- the tank is full;
- the water is not too hot; and
- all birds can reach it.
Should you isolate a bird with green droppings?
If one bird is clearly sick, weak or not eating, separating it can make observation easier and may reduce direct contact with the rest of the flock.
Use separate feed and water equipment for the sick bird.
Attend to healthy birds first, then the sick bird.
Do not start antibiotics because the droppings are green
Green droppings can come from feed, fasting, heat, viral disease, bacterial disease and other problems.
An antibiotic will not correct every cause.
Using drugs without knowing the problem can waste money and delay the correct response.
What about bitter leaf and other herbs?
Some Nigerian farmers use herbs as supportive practices.
But green droppings are not a diagnosis.
Do not use bitter leaf, scent leaf, garlic, apple cider vinegar or another home product as a replacement for checking why the bird stopped eating or became sick.
If the problem is coccidiosis, use our Bitter Leaf and Coccidiosis Guide, which separates research from field experience.
When should you worry?
Get help quickly when green droppings come with:
- sudden mortality;
- many birds becoming dull at once;
- breathing problems;
- twisted necks or paralysis;
- swollen face;
- blood in droppings;
- severe loss of appetite;
- a sudden drop in egg production; or
- the problem spreading through the flock.
A simple farmer check
When you see green droppings, check these five things first:
- Feed: Is the bird eating?
- Water: Is clean water available?
- Behaviour: Is the bird active or dull?
- Other signs: Is there coughing, weakness, blood or nervous signs?
- Flock pattern: Is it one bird or many birds?
Do not diagnose from a photograph alone
A picture of droppings can help describe the problem, but it cannot confirm the cause.
The age of the birds, vaccination history, feed, water, mortality and other signs are also important.
For a wider comparison of dropping colours, read our Chicken Droppings and Digestive Health guide. If the droppings look unusually white, use our White Diarrhoea in Poultry guide to check the other signs.
Bottom line
Green droppings are a clue, not a disease name.
If the bird is active and eating normally, check the diet.
If the bird has stopped eating, is weak or other birds are also affected, investigate quickly.
Look at the bird first. The dropping colour comes second.
