service supports listening for all events, while the

service can only listen for `push`, `issues`, `pull_request`, `commit_comment`,

`pull_request_review_comment`, and `issue_comment` events.

Each service also has a set of default events for which it listens if it isn't

configured. For example, the Web service listens only for `push` events by

default, while the IRC service listens on `push` and `pull_requests` events.

Service hooks set up via the repository settings UI listen only for the default

set of events, but can be

[re-configured via the API](/v3/repos/hooks/#edit-a-hook).