British Birds

[detective]

Which two British birds almost invariably lay only a single egg during a nesting season?

[beejay1124]

Cuckoo ?

[YvonneM]

Petrel

[burnhal]

storm petrel and gannet. the cuckoo lays umpteen eggs- albeit one in each nest it usurps!

[wildwood]

Any of the tube-nosed seabirds [albatrosses, petrels, shearwaters etc.] you consider as British will as a rule only lay one egg per season, although there are recorded instances where they have laid another eggs to replace an broken one but this is the exception rather than the rule.

Which ones are considered British can be a lengthy discussion.

[2planks]

Detective - can you not try to find the answers to GFQ and GBQ yourself? There is still plenty of time before the closing date of 8th Feb - it only arrived the week before you posted this and other questions. Thanks